Rules and Regulations Federal Register Vol

2359

Rules and Regulations Federal Register Vol. 79, No. 9

Tuesday, January 14, 2014

This section of the FEDERAL REGISTER establish a level of safety equivalent to the FAA considers necessary to contains regulatory documents having general that established by the existing establish a level of safety equivalent to applicability and legal effect, most of which airworthiness standards. that established by the existing are keyed to and codified in the Code of DATES: Effective Date: The effective date airworthiness standards. Federal Regulations, which is published under The FAA has previously written 50 titles pursuant to 44 U.S.C. 1510. of these special conditions is January 14, 2014. special conditions to address crew rest The Code of Federal Regulations is sold by FOR FURTHER INFORMATION CONTACT: Jeff compartment installations in various the Superintendent of Documents. Prices of Gardlin, FAA, Airframe/Cabin Safety, locations for various models. These new books are listed in the first FEDERAL ANM–115, Transport Airplane special conditions have been very REGISTER issue of each week. Directorate, Aircraft Certification similar in content, but the particular Service, 1601 Lind Avenue SW., details of a given installation have Renton, Washington 98057–3356; resulted in differences between the DEPARTMENT OF TRANSPORTATION telephone (425) 227–2136; facsimile actual special conditions. The FAA has (425) 227–1320. used the experience gained over time Federal Aviation Administration from prior special conditions to refine SUPPLEMENTARY INFORMATION: and enhance these special conditions. In 14 CFR Part 25 Background the case of the Model A350–900 series, [Docket No. FAA–2012–0343; Notice No. 25– On August 25, 2008, Airbus applied these special conditions reflect the 460A–SC] for a type certificate for their new Model knowledge gained from those programs A350–900 series airplane. Later, Airbus and therefore have some differences in Special Conditions: Airbus, Model requested and the FAA approved an wording from prior Airbus special A350–900 Series Airplane; Crew Rest extension to the application for FAA conditions, even though the overall Compartments type certification to June 28, 2009. The intent of the special conditions is essentially the same. AGENCY: Federal Aviation Model A350–900 series has a Administration (FAA), DOT. conventional layout with twin wing- Type Certification Basis ACTION: Amended final special mounted Rolls-Royce Trent engines. It Under 14 CFR 21.17, Airbus must conditions. features a twin aisle 9-abreast economy show that the Model A350–900 series class layout, and accommodates side-by- airplane meets the applicable provisions SUMMARY: These amended special side placement of LD–3 containers in of 14 CFR part 25, as amended by conditions are issued for Airbus Model the cargo compartment. The basic Amendments 25–1 through 25–129. A350–900 series airplanes. Notice of Model A350–900 series configuration If the Administrator finds that the proposed special conditions, request for will accommodate 315 passengers in a applicable airworthiness regulations comments, for crew rest compartments standard two-class arrangement. The (i.e., 14 CFR part 25) do not contain of the A350–900 were published on design cruise speed is Mach 0.85 with adequate or appropriate safety standards March 30, 2012 in the Federal Register a Maximum Take-Off Weight of 602,000 for the Model A350–900 series airplane [Docket No. FAA–2012–0343; Notice lbs. Airbus proposes the Model A350– because of a novel or unusual design No. 25–460–SC]. The comment period 900 series to be certified for extended feature, special conditions are closed May 14, 2012. Comments were operations (ETOPS) beyond 180 minutes prescribed under § 21.16. received. In response to an August 1, at entry into service for up to a 420- Special conditions are initially 2013 letter from Airbus, the wording of minute maximum diversion time. applicable to the model for which they the special conditions was revised. The Crew rest compartments have been are issued. Should the type certificate revised wording for special conditions 4 previously installed and certificated on for that model be amended later to and 14 is now agreed. The revised several Airbus airplane models (as well include any other model that amended special conditions wording is as those of other manufacturers) in incorporates the same or similar novel in italics. various locations including the main or unusual design feature, the special These airplanes will have novel or passenger seating area and the overhead conditions would also apply to the other unusual design features associated with space above the main passenger cabin model under § 21.101. two separate Crew Rest Compartments: seating area. In each case, the FAA In addition to the applicable a Flight Crew Rest Compartment (FCRC) determined that the applicable Title 14 airworthiness regulations and special intended to be occupied by flight crew Code of Federal Regulations (14 CFR) conditions, the Model A350–900 series members only, and a Cabin Crew Rest sections did not provide all of the must comply with the fuel vent and Compartment (CCRC) intended to be necessary requirements because each exhaust emission requirements of 14 occupied by cabin crew members. Both installation had unique features by CFR part 34 and the noise certification types of Crew Rest Compartments (CRC) virtue of its design, location, and use on requirements of 14 CFR part 36. The are installed in the overhead area with the airplane. When the FAA finds that FAA must also issue a finding of access from the main deck. The the applicable airworthiness regulations regulatory adequacy under § 611 of applicable airworthiness regulations do do not contain adequate or appropriate Public Law 92–574, the ‘‘Noise Control not contain adequate or appropriate safety standards because of a novel or Act of 1972.’’ safety standards for this design feature. unusual design feature, special The FAA issues special conditions, as These special conditions contain the conditions are prescribed under the defined in 14 CFR 11.19, under § 11.38, additional safety standards that the provisions of § 21.16. The special and they become part of the type- Administrator considers necessary to conditions contain safety standards that certification basis under § 21.17(a)(2).

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Novel or Unusual Design Features firefighter, the firefighter should check conditions changes are indicated in The Airbus Model A350–900 series for potential fire sources at areas closest italics. to the primary exit first, then proceed to will incorporate the following novel or Applicability unusual design features: two separate check areas in such a manner that the As discussed above, these special Crew Rest Compartments in the fire source, when found, would not be conditions apply to the Model A350– overhead area accessible from the main between the firefighter and the primary 900 series airplanes. Should Airbus deck. The FCRC is intended to be exit. Procedures describing methods to apply later for a change to the type occupied by flight crew members only, search the overhead crew rests for fire certificate to include another model and a CCRC is intended to be occupied source(s) must be transmitted to the incorporating the same novel or unusual by cabin crew members only. These operator for incorporation into their design feature, the special conditions compartments are unique to part 25 training programs and appropriate would apply to that model as well. because of their design, location, and operational manuals. use on the airplane. Because of the Discussion of Comments Received for Conclusion novel or unusual features associated Special Conditions 25–460–SC This action affects only certain novel with installation of these compartments, or unusual design features on the Airbus special conditions are considered Notice of proposed special conditions No. 25–460–SC for Airbus Model A350– Model A350–900 series airplanes. It is necessary to provide a level of safety not a rule of general applicability. equal to that established by the 900 series airplanes was published in airworthiness regulations. the Federal Register on March 30, 2012 List of Subjects in 14 CFR Part 25 (77 FR 19148). The following comments Discussion were received: Aircraft, Aviation safety, Reporting and recordkeeping requirements. Compliance with these special Air Line Pilots Association The authority citation for these conditions does not ensure that the International applicant has demonstrated compliance special conditions is as follows: with the requirements of 14 CFR part ALPA commented that the special Authority: 49 U.S.C. 106(g), 40113, 44701, 91, 121 or 135. condition should require that the crew 44702, 44704. In order to obtain an operational rest compartment be designed for ease evaluation, the type design holder must of serviceability, to make sure that the The Amended Special Conditions contact the appropriate Aircraft intended safety levels are maintained. Accordingly, pursuant to the Evaluation Group (AEG) in the Flight While the FAA agrees that designing the authority delegated to me by the Standards Service and request an crew rest for ease of service is desirable, administrator, the following amended evaluation for operational suitability of this goes beyond the scope of the special special conditions are issued as part of the flight crew sleeping quarters in their condition, which is simply setting the the type certification basis for Airbus crew rest facility. Results of these safety standards necessary to provide Model A350–900 series airplanes. evaluations should be documented and the same level of safety afforded by the 1. Occupancy of the overhead crew appended to the A350 Flight regulations. No change is made to the rest compartment is limited to the total Standardization Board (FSB) Report. special conditions. number of installed bunks and seats in Individual operators may reference Boeing Commercial Airplane Company each compartment, and is not allowed these standardized evaluations in for taxi, takeoff, and landing. There discussions with their FAA Principal Boeing suggested that an additional must be an approved seat or berth able Operating Inspector (POI) as the basis provision be added to explicitly state to withstand the maximum flight loads for an operational approval, in lieu of an that illumination necessary for oxygen when occupied for each occupant on-site operational evaluation. mask visibility under all lighting permitted in the overhead crew rest Any changes to the approved conditions must be provided with any compartment. In addition, the overhead crew rest compartment curtain dividers in any position. We maximum occupancy in the overhead configuration that affect crewmember agree with the intent of the comment, crew rest compartment may be limited emergency egress or any other however, the special conditions already as necessary to provide the required procedures affecting the safety of the require this. Special condition 13 level of safety. occupying crewmembers and/or related requires that the illumination (a) There must be appropriate training shall require a re-evaluation automatically be sufficient in the event placards, inside and outside each and approval. The applicant for a crew of an oxygen mask deployment. Special entrance to the overhead crew rest rest design change that affects egress, condition 14 requires that the oxygen compartment to indicate: safety procedures, or training is requirements be satisfied in each area (1) The maximum number of responsible for notifying the FAA’s AEG that is divided by a curtain, with the occupants allowed, that a new crew rest facility evaluation curtain open or closed. No change is (2) That occupancy is restricted to is required. made to the special conditions. crewmembers who are trained in the Procedures must be developed to Airbus Design evacuation procedures for the overhead assure that a crewmember entering the crew rest compartment, overhead crew rest compartment Airbus has made detailed design (3) That occupancy is prohibited through the vestibule to fight a fire will refinements that warrant modification to during taxi, take-off, and landing, examine the vestibule and the lavatory the special conditions 4 and 14, and has (4) That smoking is prohibited in the areas for the source of the fire prior to coordinated with European Aviation overhead crew rest compartment, and entering the remaining areas of the crew Safety Agency (EASA) on suitable (5) That stowage in the crew rest rest compartment. These procedures are changes that will address the Airbus compartment area is limited to crew intended to assure that the source of the design and maintain the intent of the personal luggage. The stowage of cargo fire is not between the crewmember and special conditions. FAA and EASA have or passenger baggage is not allowed. the primary exit. If a fire source is not agreed that minor changes to these (b) There must be at least one ashtray immediately self-evident to the conditions are warranted. The special on the inside and outside of any

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entrance to the overhead crew rest that berth from exiting the berth need The exit separation analysis described compartment. not be considered. Therefore, exits above should not be used to approve (c) There must be a means to prevent which are located at absolute opposite exits which have less physical passengers from entering the overhead ends (i.e., adjacent to opposite end separation (measured between the crew rest compartment in the event of walls) of the crew rest would require no centroid of each exit opening) than the an emergency or when no flight further review or analysis with regard to minimums prescribed below, unless attendant is present. exit separation. compensating features are identified (d) There must be a means for any and submitted to the FAA for evaluation door installed between the overhead Compliance by Analysis and approval. crew rest compartment and passenger Analysis must show the overhead For overhead crew rest compartments cabin to be capable of being quickly crew rest compartment configuration with one exit located near the forward opened from inside the compartment, and interior features provide for all or aft end of an overhead crew rest even when crowding occurs at each side occupants of the overhead crew rest to compartment, as measured by having of the door. escape the compartment in the event of the centroid of the exit opening within (e) For all doors installed, there must a hazard inside or outside of the 20 percent of the forward or aft end of be a means to preclude anyone from compartment. Elements to consider in the total overhead crew rest being trapped inside the overhead crew this evaluation are as follows: compartment length, the exit separation rest compartment. If a locking (1) Fire inside or outside the overhead should not be less than 50 percent of the mechanism is installed, it must be crew rest compartment considered total overhead crew rest compartment capable of being unlocked from the separately and the design elements used length. outside without the aid of special tools. to reduce the available fuel for the fire, For overhead crew rest compartments The lock must not prevent the (2) Design elements to reduce the fire with neither required exit located near compartment from being opened from ignition sources in the overhead crew the forward or aft end of the overhead the inside at any time. rest compartment, crew rest compartment, as measured by (f) The means of opening doors and (3) Distribution and quantity of not having the centroid of either exit hatches to the overhead crew rest emergency equipment within the opening within 20 percent of the compartment must be simple and overhead crew rest compartment, forward or aft end of the total overhead obvious. In addition, doors or hatches (4) Structural failure or deformation of crew rest compartment length, the exit that separate the overhead crew rest components that could block access to separation should not be less than 30 compartment from the main deck must the available evacuation routes (e.g., percent of the total overhead crew rest not adversely affect evacuation of seats, folding berths, contents of compartment length. occupants on the main deck (slowing stowage compartments, etc.), (b) The routes must be designed to evacuation by encroaching into aisles in (5) An incapacitated person blocking minimize the possibility of blockage, a way that is not easily reversible, for the evacuation routes, which might result from fire, example) or cause injury to those (6) Any other foreseeable hazard not mechanical or structural failure, or occupants during opening or while identified above that could cause the persons standing below or against the opened. evacuation routes to be compromised. escape route. One of the evacuation 2. There must be at least two Analysis must consider design routes should not be located where emergency evacuation routes, which features affecting access to the normal movement by passengers, such could be used by each occupant of the evacuation routes. The design features as in the main aisle, cross aisle or galley overhead crew rest compartment to that should be considered include, but complex, would impede egress from the evacuate rapidly to the main cabin. (a) are not limited to, seat-back break-over, overhead crew rest compartment when The routes must also be able to be the elimination of rigid structure that it is occupied. If an evacuation route closed from the main passenger cabin reduces access from one part of the utilizes an area where normal after evacuation. In addition, the routes compartment to another, the elimination movement of passengers occurs, it must must be located with sufficient of items that are known to be the cause be demonstrated that passengers would separation within the overhead crew of potential hazards, the availability of not impede egress to the main deck. If rest compartment to minimize the emergency equipment to address fire there is low headroom at or near the possibility of an event either inside or hazards, the availability of evacuation route, provisions must be outside of the crew rest compartment communications equipment, made to prevent or to protect occupants which would render both routes supplemental restraint devices to retain of the overhead crew rest compartment inoperative. items of mass that could hinder from head injury. The use of evacuation Compliance to the requirements of evacuation if broken loose, and load routes must not be dependent on any special condition No. 2. may be shown path isolation between components that powered device. If the evacuation path by inspection or by analysis. Regardless contain the evacuation routes. is over an area where there are which method is used, the maximum Analysis of the fire threats should be passenger seats, a maximum of five acceptable exit separation is 60 feet used in determining the placement of passengers may be displaced from their measured between exit openings. required fire extinguishers and seats temporarily during the evacuation protective breathing equipment (PBEs) process of an incapacitated person(s). If Compliance by Inspection and should consider the possibility of the evacuation procedure involves the An overhead crew rest compartment fire in any location in the overhead crew evacuee stepping on seats, the seats less than 60 feet in length in which the rest compartment. The location and must not be damaged to the extent that evacuation routes are located such that quantity of PBEs and fire extinguishers they would not be acceptable for each occupant of the seats and berths should allow occupants located in any occupancy during an emergency has an unobstructed route to at least one approved seats or berths access to the landing. of the evacuation routes regardless of equipment necessary to fight a fire in (c) Emergency evacuation procedures, the location of a fire would be the overhead crew rest compartment. including the emergency evacuation of acceptable by inspection. A fire within The intent of these special conditions an incapacitated occupant from the a berth that only blocks the occupant of is to provide sufficient exit separation. overhead crew rest compartment, must

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be established. All of these procedures illuminated to at least 160 turbulence such as sufficient handholds. must be transmitted to the operator for microlamberts under emergency lighting Seat belt type restraints must be incorporation into their training conditions. provided for berths and must be programs and appropriate operational 5. If the aircraft’s main power system compatible for the sleeping attitude manuals. fails, or of the normal overhead crew during cruise conditions. There must be (d) There must be a limitation in the rest compartment lighting system fails, a placard on each berth requiring that Airplane Flight Manual or other suitable there must be a means for emergency seat belts must be fastened when means requiring that crewmembers be illumination to be automatically occupied. If compliance with any of the trained in the use of all evacuation provided for the overhead crew rest other requirements of these special routes. compartment. conditions is predicated on specific 3. There must be a means for the (a) This emergency illumination must head location, there must be a placard evacuation of an incapacitated person, be independent of the main lighting identifying the head position. representative of a ninety-fifth system. 9. In lieu of the requirements percentile male, from the overhead crew (b) The sources of general cabin specified in § 25.1439(a) that pertain to rest compartment to the passenger cabin illumination may be common to both isolated compartments and to providing floor. the emergency and the main lighting a level of safety equivalent to that for (a) The evacuation must be systems if the power supply to the occupants of an isolated galley, the demonstrated for all evacuation routes. emergency lighting system is following equipment must be provided One person, e.g., a crewmember or independent of the power supply to the in the overhead crew rest compartment: assistant, within the overhead crew rest main lighting system. (a) At least one approved hand-held (c) The illumination level must be compartment may provide assistance in fire extinguisher appropriate for the sufficient for the occupants of the the evacuation. Additional assistance kinds of fires likely to occur, overhead crew rest compartment to may be provided by up to three persons (b) Two Protective Breathing locate and transfer to the main in the main passenger compartment. Equipment (PBE) devices approved to passenger cabin floor by means of each These additional assistants must be Technical Standard Order (TSO)–C116 standing on the floor while providing evacuation route. 6. There must be means for two-way or equivalent, suitable for firefighting, or assistance. one PBE for each hand-held fire (b) For evacuation routes having voice communications between crewmembers on the flight deck and extinguisher, whichever is greater, and stairways, the additional assistants may (c) One flashlight. ascend up to one half the elevation occupants of the overhead crew rest change from the main deck to the compartment. There must also be two- Note: Additional PBEs and fire extinguishers in specific locations, beyond overhead crew rest compartment, or to way communications between the occupants of the overhead crew rest the minimum numbers prescribed in Special the first landing, whichever is lower. Condition No. 9 may be required as a result 4. The following signs and placards compartment and each flight attendant station required to have a public address of the egress analysis accomplished to satisfy must be provided in the overhead crew Special Condition No. 2(a). rest compartment: system microphone per § 25.1423(g) in (a) At least one exit sign meeting the the passenger cabin. In addition, the 10. A smoke or fire detection system requirements of § 25.812(b)(1)(i) must be public address system must include or systems must be provided that located near each exit. One allowable provisions to provide only the relevant monitors each occupiable area within exception is utilization of a sign with information to the flight crewmembers the overhead crew rest compartment, reduced background area of no less than in the overhead crew rest compartment including those areas partitioned by 5.3 square inches (excluding the letters), (e.g., fire in flight, aircraft curtains. Flight tests must be conducted provided that it is installed such that depressurization, preparation of the to show compliance with this the material surrounding the exit sign is compartment occupants for landing.). requirement. Each system or systems light in color (e.g., white, cream, light 7. There must be a means for manual must provide: beige). If the material surrounding the activation of an aural emergency alarm (a) A visual indication to the exit sign is not light in color, a sign with system, audible during normal and flightdeck within one minute after the a minimum of a one-inch wide emergency conditions, to enable start of a fire; background border around the letters crewmembers on the flight deck and at (b) An aural warning in the overhead would also be acceptable. Another each pair of required floor level crew rest compartment; and allowable exception is a sign with a emergency exits to alert occupants of (c) A warning in the main passenger symbol that the FAA has determined to the overhead crew rest compartment of cabin. This warning must be readily be equivalent for use as an exit sign in an emergency situation. Use of a public detectable by a flight attendant, an overhead crew rest compartment. address or crew interphone system will considering the positioning of flight For the overhead flight crew rest be acceptable, provided an adequate attendants throughout the main compartment containing no more than means of differentiating between normal passenger compartment during various two bunks and 2 seats, an exit sign and emergency communications is phases of flight. illuminated by the emergency lighting incorporated. The system must be 11. The overhead crew rest system and meeting all other powered in flight, after the shutdown or compartment must be designed such requirements of § 25.812(b)(1)(i) is failure of all engines and auxiliary that fires within the compartment can acceptable. power units, for a period of at least ten be controlled without a crewmember (b) An appropriate placard located minutes. having to enter the compartment, or the near each exit defining the location and 8. There must be a means, readily design of the access provisions must the operating instructions for each exit. detectable by seated or standing allow crewmembers equipped for (c) Placards must be readable from a occupants of the overhead crew rest firefighting to have unrestricted access distance of 30 inches under emergency compartment, which indicates when to the compartment. The time for a lighting conditions. seat belts should be fastened. If there are crewmember on the main deck to react (d) The exit handles and operating no seats, at least one means must be to the fire alarm, to don the firefighting instruction placards must be provided to cover anticipated equipment, and to gain access must not

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exceed the time for the compartment to (a) There must be at least one mask for overhead crew rest compartment into become smoke-filled, making it difficult each seat and for each berth in the crew small sections. The placard must require to locate the fire source. Procedures rest compartment. that the curtain(s) remains open when describing methods to search the (b) If a destination area, such as a the private section it creates is overhead crew rests for fire sources(s) changing area, is provided in the unoccupied. The vestibule section must be established. These procedures overhead crew rest compartment, there adjacent to the stairway is not must be transmitted to the operator for must be an oxygen mask readily considered a private area and, therefore, incorporation into their training available for each occupant that can does not require a placard. programs and appropriate operational reasonably be expected to be in the (b) For each section of the CRC manuals. destination area. The maximum number created by the installation of a curtain, 12. There must be a means provided of required masks within the destination the following requirements of these to exclude hazardous quantities of area is limited to the placarded special conditions must be met with the smoke or extinguishing agent maximum occupancy of the crew rest. curtain open or closed: originating in the overhead crew rest (c) There must also be an oxygen (1) No smoking placard (Special compartment from entering any other mask readily accessible to each Condition No. 1), compartment occupied by crewmembers occupant that can reasonably be (2) Emergency illumination (Special or passengers. This means must include expected to be either transitioning from Condition No. 5), the time periods during the evacuation the main cabin into the crew rest (3) Emergency alarm system (Special of the overhead crew rest compartment compartment, transitioning within the Condition No. 7), and, if applicable, when accessing the crew rest compartment, or transitioning (4) Seat belt fasten signal or return to overhead crew rest compartment to from the crew rest compartment to the seat signal as applicable (Special manually fight a fire. Smoke entering main cabin. Condition No. 8), unless it is agreed by any other compartment occupied by (d) The system must provide an aural the FAA that only short term occupancy crewmembers or passengers when the and visual alert to warn the occupants is possible (e.g. a changing area with access to the overhead crew rest of the overhead crew rest compartment room for only one standing person and compartment is opened, during an to don oxygen masks if there is a possessing no seat or feature useable as emergency evacuation, must dissipate decompression. The aural and visual a seat), and within five minutes after the access to alerts must activate concurrently with (5) The smoke or fire detection system the overhead crew rest compartment is the deployment of the oxygen masks in (Special Condition No. 10), and closed. Hazardous quantities of smoke the passenger cabin. To compensate for (6) The oxygen system (Special may not enter any other compartment sleeping occupants, the aural alert must Condition No. 13). occupied by crewmembers or be heard in each section of the overhead (c) Overhead crew rest compartments passengers during subsequent access to crew rest compartment and must sound visually divided to the extent that manually fight a fire in the overhead continuously for a minimum of five evacuation could be affected must have crew rest compartment (the amount of minutes or until a reset switch within exit signs that direct occupants to the smoke entrained by a firefighter exiting the overhead crew rest compartment is primary stairway exit. The exit signs the overhead crew rest compartment activated. A visual alert that informs must be provided in each separate through the access is not considered occupants that they must don an oxygen section of the overhead crew rest hazardous). During the one-minute mask must be visible in each section. smoke detection time, penetration of a (e) There must also be a means by compartment, except for curtained small quantity of smoke from the which the oxygen masks can be bunks, and must meet the requirements overhead crew rest compartment into an manually deployed from the flight deck. of § 25.812(b)(1)(i). An exit sign with occupied area is acceptable. Flight tests (f) Decompression procedures for reduced background area or a symbolic must be conducted to show compliance crew rest occupants must be exit sign as described in Special with this requirement. established. These procedures must be Condition No. 4(a) may be used to meet There must be a provision in the transmitted to the operator for this requirement. firefighting procedures to ensure that all incorporation into their training (d) For sections within an overhead door(s) and hatch(es) at the crew rest programs and appropriate operational crew rest compartment with a rigid compartment outlets are closed after manuals. partition with a door physically evacuation of the crew rest (g) The supplemental oxygen system separating the sections, the following compartment and during firefighting to for the crew rest shall meet the same 14 requirements of these special conditions minimize smoke and extinguishing CFR part 25 regulations as the must be met with the door open or agent from entering other occupiable supplemental oxygen system for the closed: compartments. passenger cabin occupants except for (1) There must be a secondary If a built-in fire extinguishing system the 10 percent additional masks evacuation route from each section to is used in lieu of manual firefighting, requirement of § 25.1447(c)(1). the main deck, or alternatively, it must then the fire extinguishing system must (h) The illumination level of the be shown that any door between the be designed so that no hazardous normal overhead crew rest compartment sections has been designed to preclude quantities of extinguishing agent will lighting system must automatically be anyone from being trapped inside the enter other compartments occupied by sufficient for each occupant of the compartment. Removal of an passengers or crew. The system must compartment to locate a deployed incapacitated occupant within this area have adequate capacity to suppress any oxygen mask. must be considered. A secondary fire occurring in the overhead crew rest 14. The following requirements apply evacuation route from a small room compartment, considering the fire to overhead crew rest compartments designed for only one occupant for short threat, volume of the compartment, and that are divided into sections by time duration, such as a changing area the ventilation rate. curtains or partitions: or lavatory, is not required. However, 13. There must be a supplemental (a) A placard is required adjacent to removal of an incapacitated occupant oxygen system within the crew rest each curtain that visually divides or from a small room, such as a changing compartment as follows: separates, for privacy purposes, the area or lavatory, must be considered.

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(2) Any door between the sections (5) Seat belt fasten signal or return to 18. The addition of a lavatory within must be shown to be openable when seat signal as applicable (Special the overhead crew rest compartment crowded against, even when crowding Condition No. 8); would require the lavatory to meet the occurs at each side of the door. (6) Emergency firefighting and same requirements as those for a (3) There may be no more than one protective equipment (Special lavatory installed on the main deck door between any seat or berth and the Condition No. 9); except with regard to Special Condition primary stairway exit. (7) Smoke or fire detection system No. 10 for smoke detection. (4) There must be exit signs in each (Special Condition No. 10), and 19. Each stowage compartment in the section meeting the requirements of (8) The oxygen system (Special crew rest compartment, except for § 25.812(b)(1)(i), or shown to have an Condition No. 13). underseat compartments for occupant Equivalent Level of Safety, that direct 15. The requirements of two-way convenience, must be completely occupants to the primary stairway exit. voice communication with the flight enclosed. All enclosed stowage An exit sign with reduced background deck and provisions for emergency compartments within the overhead crew area or a symbolic exit sign as described firefighting and protective equipment rest compartment that are not limited to in Special Condition No. 4(a) may be are not applicable to lavatories or other stowage of emergency equipment or used to meet this requirement. small areas that are not intended to be airplane supplied equipment such as (e) For each smaller section within the occupied for extended periods of time. bedding must meet the design criteria main overhead crew rest compartment 16. Where a waste disposal receptacle given in the table below. Enclosed is fitted, it must be equipped with an stowage compartments greater than 200 created by the installation of a partition 3 with a door, the following requirements automatic fire extinguisher that meets ft in interior volume are not addressed of these special conditions must be met the performance requirements of by this special condition. The in-flight with the door open or closed: § 25.854(b). accessibility of very large enclosed 17. Materials (including finishes or stowage compartments and the (1) No smoking placards (Special decorative surfaces applied to the subsequent impact on the Condition No. 1); materials) must comply with the crewmembers’ ability to effectively (2) Emergency illumination (Special flammability requirements of § 25.853(a) reach any part of the compartment with Condition No. 5); as amended by Amendment 25–116. the contents of a hand fire extinguisher (3) Two-way voice communication Mattresses must comply with the will require additional fire protection (Special Condition No. 6); flammability requirements of considerations similar to those required (4) Emergency alarm system (Special § 25.853(c), as amended by Amendment for inaccessible compartments such as Condition No. 7); 25–116. Class C cargo compartments.

STOWAGE COMPARTMENT INTERIOR VOLUMES

25 cubic feet to Fire protection features Less than 25 cubic feet 200 cubic feet

Materials of Construction 1 ...... Yes ...... Yes. Detectors 2 ...... No ...... Yes. Liner 3 ...... No ...... Yes. Locating Device 4 ...... No ...... Yes. 1 Material The material used to construct each enclosed stowage compartment must at least be fire resistant and must meet the flammability standards established for interior components of § 25.853. For compartments less than 25 ft 3 in interior volume, the design must ensure the ability to contain a fire likely to occur within the compartment under normal use. 2 Detectors Enclosed stowage compartments equal to or exceeding 25 ft 3 in interior volume must be provided with a smoke or fire detection system to ensure that a fire can be detected within a one-minute detection time. Flight tests must be conducted to show compliance with this requirement. Each system (or systems) must provide: (a) A visual indication in the flight deck within one minute after the start of a fire, (b) An aural warning in the overhead crew rest compartment, and (c) A warning in the main passenger cabin. This warning must be readily detectable by a flight attendant and consider the position of flight attendants throughout the main passenger compartment during various phases of flight. 3 Liner If it can be shown that the material used to construct the stowage compartment meets the flammability requirements of a liner for a Class B cargo compartment (i.e., § 25.855 at Amendment 25–116, and Appendix F, part I, paragraph (a)(2)(ii)), then no liner is required for enclosed stowage compartments equal to or greater than 25 ft 3 in interior volume but less than 57 ft 3 in interior volume. For all enclosed stowage compartments equal to or greater than 57 ft3 in interior volume but less than or equal to 200 ft 3, a liner must be provided that meets the requirements of § 25.855 for a Class B cargo compartment. 4 Locating Device Overhead crew rest compartments which contain enclosed stowage compartments exceeding 25 ft 3 interior volume and which are located away from the entry to the overhead crew rest compartment require additional fire protection features and/or devices to assist the firefighter in determining the location of a fire.

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Issued in Renton, Washington, on including any personal information the class layout, and accommodates side-by- December 30, 2013. commenter provides. Using the search side placement of LD–3 containers in John P. Piccola, Jr., function of the docket Web site, anyone the cargo compartment. The basic Acting Manager, Transport Airplane can find and read the electronic form of Model A350–900 series configuration Directorate, Aircraft Certification Service . all comments received into any FAA will accommodate 315 passengers in a [FR Doc. 2014–00446 Filed 1–13–14; 8:45 am] docket, including the name of the standard two-class arrangement. The BILLING CODE 4910–13–P individual sending the comment (or design cruise speed is Mach 0.85 with signing the comment for an association, a Maximum Take-Off Weight of 602,000 business, labor union, etc.). DOT’s lbs. Airbus proposes the Model A350– DEPARTMENT OF TRANSPORTATION complete Privacy Act Statement can be 900 series to be certified for extended found in the Federal Register published operations (ETOPS) beyond 180 minutes Federal Aviation Administration on April 11, 2000 (65 FR 19477–19478), at entry into service for up to a 420- as well as at minute maximum diversion time. 14 CFR Part 25 http://DocketsInfo.dot.gov/. The Airbus Model A350–900 series is [Docket No. FAA–2013–0895; Notice No. 25– Docket: Background documents or equipped with an electronic flight 516–SC] comments received may be read at control system that provides control of http://www.regulations.gov/ at any time. the aircraft through pilot inputs to the Special Conditions: Airbus, A350–900 Follow the online instructions for flight computer. Current part 25 Series Airplane; Design Roll Maneuver accessing the docket or go to the Docket airworthiness regulations account for Operations in Room W12–140 of the AGENCY: Federal Aviation control laws for which aileron Administration (FAA), DOT. West Building Ground Floor at 1200 deflection is proportional to control New Jersey Avenue SE., Washington, stick deflection. They do not address ACTION: Final special conditions, request DC, between 9 a.m. and 5 p.m., Monday any nonlinearities or other effects on for comments. through Friday, except federal holidays. aileron actuation that may be caused by SUMMARY: These special conditions are FOR FURTHER INFORMATION CONTACT: electronic flight controls. Since this type issued for Airbus Model A350–900 Todd Martin, FAA, Airframe and Cabin of system may affect flight loads, and series airplanes. These airplanes will Safety Branch, ANM–115, Transport therefore the structural capability of the have a novel or unusual design Airplane Directorate, Aircraft airplane, specific regulations are needed feature(s) associated with the airplane’s Certification Service, 1601 Lind Avenue to address these effects. These special response to the design roll maneuver. SW., Renton, Washington, 98057–3356; conditions adjust the current roll The applicable airworthiness telephone (425) 227–1178; facsimile maneuver requirement, Title 14, Code of regulations do not contain adequate or (425) 227–1320. Federal Regulations (14 CFR) 25.349(a), appropriate safety standards for this SUPPLEMENTARY INFORMATION: The to take into account the effects of an design feature. These special conditions substance of these special conditions electronic flight control system. contain the additional safety standards has been subject to the public comment Type Certification Basis that the Administrator considers process in several prior instances with necessary to establish a level of safety no substantive comments received. The Under § 21.17, Airbus must show that equivalent to that established by the FAA therefore finds that good cause the Model A350–900 series meets the existing airworthiness standards. exists for making these special applicable provisions of 14 CFR part 25, DATES: The effective date of these conditions effective upon issuance. as amended by Amendments 25–1 special conditions is January 14, 2014. through 25–129. Comments Invited We must receive your comments by If the Administrator finds that the February 28, 2014. We invite interested people to take applicable airworthiness regulations (i.e., 14 CFR part 25) do not contain ADDRESSES: Send comments identified part in this rulemaking by sending by docket number FAA–2013–0895 written comments, data, or views. The adequate or appropriate safety standards using any of the following methods: most helpful comments reference a for the Model A350–900 series because • Federal eRegulations Portal: Go to specific portion of the special of a novel or unusual design feature, http://www.regulations.gov/ and follow conditions, explain the reason for any special conditions are prescribed under the online instructions for sending your recommended change, and include § 21.16. comments electronically. supporting data. Special conditions are initially • Mail: Send comments to Docket We will consider all comments we applicable to the model for which they Operations, M–30, U.S. Department of receive by 45 days after publication of are issued. Should the type certificate Transportation (DOT), 1200 New Jersey these special condition in the Federal for that model be amended later to Avenue SE., Room W12–140, West Register. We may change these special include any other model that Building Ground Floor, Washington, conditions based on the comments we incorporates the same novel or unusual DC, 20590–0001. receive. design feature, the special conditions • Hand Delivery or Courier: Take would also apply to the other model. Background comments to Docket Operations in In addition to the applicable Room W12–140 of the West Building On August 25, 2008, Airbus applied airworthiness regulations and special Ground Floor at 1200 New Jersey for a type certificate for their new Model conditions, the Model A350–900 series Avenue SE., Washington, DC, between 9 A350–900 series airplane. Later, Airbus must comply with the fuel vent and a.m. and 5 p.m., Monday through requested and the FAA approved an exhaust emission requirements of 14 Friday, except federal holidays. extension to the application for FAA CFR part 34 and the noise certification • Fax: Fax comments to Docket type certification to June 28, 2009. The requirements of 14 CFR part 36, and the Operations at 202–493–2251. Model A350–900 series has a FAA must issue a finding of regulatory Privacy: The FAA will post all conventional layout with twin wing- adequacy under section 611 of Public comments it receives, without change, mounted Rolls-Royce Trent engines. It Law 92–574, the ‘‘Noise Control Act of to http://www.regulations.gov/, features a twin aisle 9-abreast economy 1972.’’

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