Federal Register / Vol. 77, No. 112 / Monday, June 11, 2012 / Proposed Rules 34281

in multifamily residential housing support structure, and if necessary, Comments Invited financed by mortgages purchased by installing an inspection panel kit in the that Enterprise, and for Freddie Mac, at aft fuselage assembly, and installing We invite you to participate in this least 32,000 such dwelling units. doublers in the stabilizer support rulemaking by submitting written (2) For the year 2013, the subgoal for brackets. The actions specified by the comments, data, or views. We also each Enterprise’s purchases of proposed AD are intended to prevent invite comments relating to the mortgages on multifamily residential separation of the horizontal stabilizer economic, environmental, energy, or housing affordable to very low-income from the helicopter and subsequent loss federalism impacts that might result families shall be, for Fannie Mae, at of control of the helicopter. from adopting the proposals in this least 59,000 dwelling units affordable to document. The most helpful comments DATES: We must receive comments on reference a specific portion of the very low-income families in multifamily this proposed AD by August 10, 2012. residential housing financed by proposal, explain the reason for any ADDRESSES: You may send comments by mortgages purchased by that Enterprise, recommended change, and include any of the following methods: supporting data. To ensure the docket and for Freddie Mac, at least 31,000 • such dwelling units. Federal eRulemaking Docket: Go to does not contain duplicate comments, (3) For the year 2014, the subgoal for http://www.regulations.gov. Follow the commenters should send only one copy each Enterprise’s purchases of online instructions for sending your of written comments, or if comments are mortgages on multifamily residential comments electronically. filed electronically, commenters should • housing affordable to very low-income Fax: 202–493–2251. submit only one time. • families shall be, for Fannie Mae, at Mail: Send comments to the U.S. We will file in the docket all least 53,000 dwelling units affordable to Department of Transportation, Docket comments that we receive, as well as a very low-income families in multifamily Operations, M–30, West Building report summarizing each substantive residential housing financed by Ground Floor, Room W12–140, 1200 public contact with FAA personnel mortgages purchased by that Enterprise, New Jersey Avenue SE., Washington, concerning this proposed rulemaking. and for Freddie Mac, at least 27,000 DC 20590–0001. Before acting on this proposal, we will • such dwelling units. Hand Delivery: Deliver to the consider all comments we receive on or ‘‘Mail’’ address between 9 a.m. and before the closing date for comments. Dated: June 5, 2012. 5 p.m., Monday through Friday, except Edward J. DeMarco, We will consider comments filed after Federal holidays. the comment period has closed if it is Acting Director, Federal Housing Finance Agency. Examining the AD Docket possible to do so without incurring expense or delay. We may change this [FR Doc. 2012–14105 Filed 6–8–12; 8:45 am] You may examine the AD docket on proposal in light of the comments we BILLING CODE 8070–01–P the Internet at http:// receive. www.regulations.gov or in person at the Docket Operations Office between Discussion DEPARTMENT OF TRANSPORTATION 9 a.m. and 5 p.m., Monday through This document proposes adopting a Friday, except Federal holidays. The AD new AD for the Schweizer Model 269D Federal Aviation Administration docket contains this proposed AD, the and Model 269D Configuration A economic evaluation, any comments helicopters, serial numbers 0001 to 14 CFR Part 39 received, and other information. The 0062A, with aft fuselage assembly part street address for the Docket Operations [Docket No. FAA–2012–0602; Directorate number (P/N) 269D3300–1 installed. Office (telephone 800–647–5527) is in Identifier 2009–SW–061–AD] This proposal is prompted by reports of the ADDRESSES section. Comments will RIN 2120–AA64 loose horizontal stabilizers and cracks be available in the AD docket shortly in the support structure for the extruded Airworthiness Directives; Schweizer after receipt. tailboom. The actions specified by the Aircraft Corporation For service information identified in proposed AD are intended to prevent this proposed AD, contact Sikorsky separation of the horizontal stabilizer AGENCY: Federal Aviation Aircraft Corporation, Attn: Manager, from the helicopter and subsequent loss Administration (FAA), DOT. Commercial Technical Support, of control of the helicopter. ACTION: Notice of proposed rulemaking mailstop s581a, 6900 Main Street, (NPRM). Stratford, CT 06614; telephone (800) FAA’s Determination 562–4409; email We are proposing this AD because we SUMMARY: This document proposes to [email protected]; or at http:// evaluated all known relevant adopt a new airworthiness directive www.sikorsky.com. You may review information and determined that an (AD) for Schweizer Aircraft Corporation copies of the referenced service unsafe condition exists and is likely to (Schweizer) Model 269D and Model information at the FAA, Office of the exist or develop on other products of the 269D Configuration A helicopters. The Regional Counsel, Southwest Region, same type design. type certificate for these models is 2601 Meacham Blvd., Room 663, Fort currently held by Sikorsky Aircraft Worth, Texas 76137. Related Service Information Corporation (Sikorsky). This proposal is FOR FURTHER INFORMATION CONTACT: prompted by reports of loose horizontal We have reviewed Schweizer Service stabilizers and cracks in the stabilizer- Stephen Kowalski, Aviation Safety Bulletin DB–018.3, dated December 13, support structure for the extruded Engineer, New York Aircraft 2007 (SB), which specifies inspecting tailboom. The AD would require Certification Office, Engine & Propeller for cracks in the fuselage assemblies and inspecting the aft fuselage assembly in Directorate, 1600 Stewart Ave. suite installing an inspection panel kit and the area around the attachment point of 410, Westbury, NY 11590; telephone stabilizer mount doublers. The Type the horizontal stabilizer, including the (516) 228–7327; email Certificate for these helicopters paint, for a crack. This AD also would [email protected]. transferred from Schweizer to Sikorsky require inspecting the tailboom interior SUPPLEMENTARY INFORMATION: on September 26, 2011.

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Proposed AD Requirements per year, the annual labor cost per 1. Is not a ‘‘significant regulatory This proposed AD would require: helicopter would be about $3,285. The action’’ under Executive Order 12866; • Before the first flight of each day, annual cost for the U.S. fleet would total 2. Is not a ‘‘significant rule’’ under the $59,130. DOT Regulatory Policies and Procedures visually inspecting the aft fuselage • assembly in the area around the Internal inspection. This would (44 FR 11034, February 26, 1979); attachment point of the horizontal take two work-hours for a labor cost of 3. Will not affect intrastate aviation in stabilizer for a crack. $170. Assuming 10 inspections a year, Alaska to the extent that it justifies • If there is a crack in the aft fuselage the annual labor cost per helicopter making a regulatory distinction; and assembly clip, aft bulkhead, or adjacent would be $1,700. • Install inspection panel. This would 4. Will not have a significant skins, repairing the crack and either economic impact, positive or negative, performing a repetitive inspection at take 16 work-hours for a labor cost of $1,360. Parts would cost $150 for a cost on a substantial number of small entities intervals not to exceed 200 hours time- under the criteria of the Regulatory in-service (TIS) or replacing the aft per helicopter of $1,510. • Flexibility Act. fuselage assembly. Repair damaged longerons, We prepared an economic evaluation • If there is a crack in a longeron, tailboom tube collars, or forward of the estimated costs to comply with tailboom tube collar or a forward stabilizer bulkhead as needed. This this proposed AD and placed it in the stabilizer bulkhead, replacing the aft would take 24 work-hours for a labor AD docket. fuselage assembly. cost of $2,040. Parts would cost $38,000 • Within 100 hours TIS or three for a cost per helicopter of $40,040. List of Subjects in 14 CFR Part 39 months, whichever occurs first: • Repair a crack in the aft fuselage Æ Removing the horizontal stabilizer, assembly clip, aft bulkhead, or adjacent Air transportation, Aircraft, Aviation cleaning the horizontal stabilizer skins. This would take 24 work-hours safety, Incorporation by reference, mounting brackets, inspecting the for a labor cost of $2,040. Parts would Safety. mounting brackets for wear greater than cost $120 for a cost per helicopter of The Proposed Amendment 0.002-inch deep, and replacing the $2,160. mounting bracket if the bracket wear • Repair interference between the Accordingly, under the authority exceeds 0.002-inch deep. rivet heads and skin . This would take delegated to me by the Administrator, Æ Modifying the aft fuselage assembly 10 work-hours for a labor cost of $850. the FAA proposes to amend 14 CFR part by installing Inspection Panel kit P/N No parts would be needed. 39 as follows: SA–269DK–035, installing doublers on Authority for This Rulemaking PART 39—AIRWORTHINESS the forward side of each mounting DIRECTIVES bracket, inspecting the horizontal Title 49 of the United States Code stabilizer forward and aft spars for wear specifies the FAA’s authority to issue rules on aviation safety. Subtitle I, 1. The authority citation for part 39 in the mounting attachment areas, and continues to read as follows: replacing the spar if the wear exceeds section 106, describes the authority of 0.002-inch deep. the FAA Administrator. ‘‘Subtitle VII: Authority: 49 U.S.C. 106(g), 40113, 44701. Æ Aviation Programs,’’ describes in more Inspecting for rivet interference § 39.13 [Amended] between the rivet heads and skin on the detail the scope of the Agency’s top surface of the horizontal stabilizer authority. 2. The FAA amends § 39.13 by adding and the tailboom stiffening web near We are issuing this rulemaking under the following new Airworthiness Station 232.4 and replacing the rivets if the authority described in ‘‘Subtitle VII, Directive interference exists. Part A, Subpart III, Section 44701: (AD): SCHWEIZER AIRCRAFT Æ Installing an airworthy horizontal General requirements.’’ Under that CORPORATION HELICOPTERS: Docket stabilizer using 4 bolts, P/N NAS1304– section, Congress charges the FAA with No. FAA–2012–0602; Directorate 4, and 4 washers, P/N AN960KD416 or promoting safe flight of civil aircraft in Identifier 2009–SW–061–AD. NAS1149D0463K. air commerce by prescribing regulations (a) Applicability • for practices, methods, and procedures Removing aft fuselage assembly This AD applies to Schweizer Aircraft P/N 269D3300–1, and replacing it with the Administrator finds necessary for Corporation (Schweizer) Model 269D and aft fuselage assembly P/N 269D3300–35, safety in air commerce. This regulation Model 269D Configuration A helicopters, would be terminating action for the is within the scope of that authority serial numbers 0001 to 0062A, with aft requirements of this AD. because it addresses an unsafe condition fuselage assembly part number (P/N) that is likely to exist or develop on 269D3300–1 installed, certificated in any Differences Between This Proposed AD products identified in this rulemaking category. and the Service Information action. Note to Applicability: The type certificate The Schweizer SB requires contacting for these models is currently held by Regulatory Findings Sikorsky Aircraft Corporation. the manufacturer if certain damage is found for repair instructions. This AD We determined that this proposed AD (b) Unsafe Condition does not. would not have federalism implications This AD defines the unsafe condition as under Executive Order 13132. This loose horizontal stabilizers and cracks in the Costs of Compliance proposed AD would not have a stabilizer support structure for the extruded We estimate that this proposed AD substantial direct effect on the States, on tailboom, which could result in separation of would affect 18 helicopters. The average the relationship between the national the horizontal stabilizer from the helicopter labor rate is $85 per work hour. Based Government and the States, or on the and subsequent loss of helicopter control. on these assessments, we estimate the distribution of power and (c) Compliance following costs: responsibilities among the various • You are responsible for performing each Daily visual inspection. This would levels of government. action required by this AD within the take about 10 minutes for a labor cost For the reasons discussed, I certify specified compliance time unless it has of $9. Assuming 365 daily inspections this proposed regulation: already been accomplished prior to that time.

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(d) Required Actions proposal to: Stephen Kowalski, Aviation airplane model to the applicability. We (1) Before the first flight of each day, Safety Engineer, New York Aircraft are proposing this AD to prevent both visually inspect the aft fuselage assembly in Certification Office, Engine & Propeller off-wing exits from being inoperative, the area around the attachment point of the Directorate, 1600 Stewart Ave., suite 410, which, during an emergency, would horizontal stabilizer, including the paint, for Westbury, NY 11590; telephone (516) 228– 7327; email [email protected]. impair the safe evacuation of occupants, a crack. If there is a crack, remove the possibly resulting in personal injuries. horizontal stabilizer and perform an interior (2) For operations conducted under a 14 inspection in accordance with Part II: CFR part 119 operating certificate or under Since this action imposes an additional Internal Inspection, paragraphs b. and c., of 14 CFR part 91, subpart K, we suggest that burden over that proposed in the NPRM, Schweizer Service Bulletin DB–018.3, dated you notify your principal inspector, or we are reopening the comment period to December 13, 2007 (SB). lacking a principal inspector, the manager of allow the public the chance to comment (i) If there is a crack in the aft fuselage the local flight standards district office or on these proposed changes. certificate holding district office before assembly clip, in the aft bulkhead, or in DATES: We must receive comments on operating any aircraft complying with this adjacent skins, repair the crack. Thereafter, at this proposed AD by July 26, 2012. intervals not to exceed 200 hours time-in- AD through an AMOC. ADDRESSES: You may send comments by service (TIS), remove the horizontal stabilizer (g) Additional Information and repeat the interior inspection in any of the following methods: accordance with Part II: Internal Inspection, For service information identified in this • Federal eRulemaking Portal: Go to paragraphs b. and c., of the SB, or replace the AD, contact Sikorsky Aircraft Corporation, http://www.regulations.gov. Follow the aft fuselage assembly, P/N 269D3300–1,with Attn: Manager, Commercial Technical instructions for submitting comments. an airworthy aft fuselage assembly, P/N Support, mailstop s581a, 6900 Main Street, • Fax: (202) 493–2251. 269D3300–35. Stratford, CT 06614; telephone (800) 562– • Mail: U.S. Department of (ii) If there is a crack in a longeron, 4409; email [email protected]; or at http://www.sikorsky.com. You may review a Transportation, Docket Operations, tailboom tube collar or a forward stabilizer M–30, West Building Ground Floor, bulkhead, replace the aft fuselage assembly copy of information at the FAA, Office of the with an airworthy aft fuselage assembly, Regional Counsel, Southwest Region, 2601 Room W12–140, 1200 New Jersey Meacham Blvd., Room 663, Fort Worth, Avenue SE., Washington, DC 20590. P/N 269D3300–35. • (2) Within 100 hours TIS or three months, Texas 76137. Hand Delivery: U.S. Department of Transportation, Docket Operations, whichever occurs first: (h) Subject (i) Remove the horizontal stabilizer, clean M–30, West Building Ground Floor, the horizontal stabilizer mounting brackets, Joint Aircraft Service Component (JASC) Room W12–140, 1200 New Jersey and inspect the mounting brackets for wear Code: 5302, Rotorcraft tailboom. Avenue SE., Washington, DC, between 9 greater than 0.002-inch deep. If the bracket Issued in Fort Worth, Texas, on May 25, a.m. and 5 p.m., Monday through wear exceeds 0.002-inch deep, replace the 2012. Friday, except Federal holidays. mounting bracket with an airworthy Lance T. Gant, mounting bracket. For service information identified in (ii) Modify the aft fuselage assembly by Acting Manager, Rotorcraft Directorate, this proposed AD, contact Airbus, installing Inspection Panel kit P/N SA– Aircraft Certification Service. Airworthiness Office—EAS, 1 Rond 269DK–035. [FR Doc. 2012–14037 Filed 6–8–12; 8:45 am] Point Maurice Bellonte, 31707 Blagnac (iii) Install doublers on the forward side of BILLING CODE 4910–13–P Cedex, France; telephone +33 5 61 93 36 each mounting bracket in accordance with 96; fax +33 5 61 93 44 51; email Part III–2, paragraphs e. through i., of the SB. [email protected]; (iv) Inspect the horizontal stabilizer DEPARTMENT OF TRANSPORTATION Internet http://www.airbus.com. You forward and aft spars for wear in the may review copies of the referenced mounting attachment areas. If the wear Federal Aviation Administration exceeds 0.002-inch deep, replace the spar service information at the FAA, with an airworthy spar. Transport Airplane Directorate, 1601 (v) Inspect for rivet interference between 14 CFR Part 39 Lind Avenue SW., Renton, Washington. the rivet heads and skin on the top surface [Docket No. FAA–2011–1167; Directorate For information on the availability of of the horizontal stabilizer and the tailboom Identifier 2011–NM–058–AD] this material at the FAA, call 425–227– stiffening web near Station 232.4. If 1221. interference exists, replace with airworthy RIN 2120–AA64 rivets. Examining the AD Docket (vi) Install an airworthy horizontal Airworthiness Directives; Airbus You may examine the AD docket on stabilizer using 4 bolts, P/N NAS1304–4, and Airplanes the Internet at http:// 4 washers, P/N AN960KD416 or NAS1149D0463K. AGENCY: Federal Aviation www.regulations.gov; or in person at the (3) Removing aft fuselage assembly, P/N Administration (FAA), DOT. Docket Operations office between 9 a.m. 269D3300–1, and replacing it with aft ACTION: Supplemental notice of and 5 p.m., Monday through Friday, fuselage assembly, P/N 269D3300–35, is proposed rulemaking (NPRM); except Federal holidays. The AD docket terminating action for the requirements of reopening of comment period. contains this proposed AD, the this AD. regulatory evaluation, any comments (e) Special Flight Permit SUMMARY: We are revising an earlier received, and other information. The Special flight permits may be issued in proposed airworthiness directive (AD) street address for the Docket Operations accordance with 14 CFR 21.197 and 21.199 for certain Airbus Model A319 and office (telephone (800) 647–5527) is in provided that before operating the helicopter A320 series airplanes. That NPRM the ADDRESSES section. Comments will to a location to perform the actions in proposed to require modification of the be available in the AD docket shortly paragraphs (d)(1) through (d)(3) of this AD, off-wing escape slide (OWS) enclosures after receipt. a daily, pre-flight visual inspection is on both sides. That NPRM was FOR FURTHER INFORMATION CONTACT: accomplished in accordance with paragraph prompted by a report of a torn out Sanjay Ralhan, Aerospace Engineer, (d)(1) of this AD. aspirator due to the aspirator interfering International Branch, ANM–116, (f) Alternative Methods of Compliance with the extrusion lip of the OWS Transport Airplane Directorate, FAA, (AMOC) enclosure during the initial stage of the 1601 Lind Avenue SW., Renton, (1) The Manager, NYACO, FAA, may deployment sequence. This action Washington 98057–3356; telephone approve AMOCs for this AD. Send your revises that NPRM by adding an (425) 227–1405; fax (425) 227–1149.

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