41595

Rules and Regulations Federal Register Vol. 84, No. 158

Thursday, August 15, 2019

This section of the FEDERAL REGISTER Room W12–140 of the West Building Special Company/airplane model contains regulatory documents having general Ground Floor at 1200 New Jersey conditions No. applicability and legal effect, most of which Avenue SE, Washington, DC, between 9 1 are keyed to and codified in the Code of 23–253–SC ..... Diamond Industries/ a.m., and 5 p.m., Monday through Model DA–40NG. Federal Regulations, which is published under Friday, except Federal holidays. 23–267–SC 2 ..... Cirrus Design Corporation/Model 50 titles pursuant to 44 U.S.C. 1510. b Fax: Fax comments to Docket SF50. 23–282–SC 3 ..... Pilatus Aircraft Ltd./Model PC– The Code of Federal Regulations is sold by Operations at 202–493–2251. 24. the Superintendent of Documents. Privacy: The FAA will post all 23–292–SC 4 ..... Costruzioni Aeronautiche comments it receives, without change, Tecnam S.P.A./Model P2012. to http://regulations.gov, including any DEPARTMENT OF TRANSPORTATION personal information the commenter Comments Invited provides. Using the search function of The FAA invites interested people to Federal Aviation Administration the docket website, anyone can find and take part in this rulemaking by sending read the electronic form of all comments written comments, data, or views. The 14 CFR Part 23 received into any FAA docket, most helpful comments reference a including the name of the individual [Docket No. FAA–2019–0618; Special specific portion of the special Conditions No. 23–295–SC] sending the comment (or signing the conditions, explain the reason for any comment for an association, business, recommended change, and include Special Conditions: Pilatus Aircraft labor union, etc.). DOT’s complete supporting data. The FAA asks that you Ltd., Model PC–12/47E Airplanes; Privacy Act Statement can be found in send two copies of written comments. Electronic Engine Control System the Federal Register published on April The FAA will consider all comments Installation 11, 2000 (65 FR 19477–19478). Docket: Background documents or received on or before the closing date AGENCY: Federal Aviation for comments. The FAA will consider Administration (FAA), DOT. comments received may be read at http://www.regulations.gov at any time. comments filed late if it is possible to ACTION: Final special conditions; request Follow the online instructions for do so without incurring expense or for comments. accessing the docket or go to the Docket delay. The FAA may change these Operations in Room W12–140 of the special conditions based on the SUMMARY: These special conditions are comments received. issued for the Pilatus Aircraft Ltd., West Building Ground Floor at 1200 Model PC–12/47E airplane. This New Jersey Avenue SE, Washington, Background DC, between 9 a.m., and 5 p.m., Monday airplane will have a novel or unusual On March 9, 2017, Pilatus Aircraft through Friday, except Federal holidays. design feature associated with Ltd. (Pilatus) applied for FAA validation installation of an engine that includes FOR FURTHER INFORMATION CONTACT: Jeff of its change to Type Certificate No. an electronic engine control system. The Pretz, AIR–691, Small Airplane A78EU 5 for installation of an electronic applicable airworthiness regulations do Standards Branch, Policy & Innovation engine control (EEC) system— not contain adequate or appropriate Division, Aircraft Certification Service, commonly referred to as a full authority safety standards for this design feature. Federal Aviation Administration, 901 digital engine control (FADEC)—in the These special conditions contain the Locust, Room 301, Kansas City, MO Model PC–12/47E airplane. The Model additional safety standards that the 64106; telephone (816) 329–3239; PC–12/47E is a normal category, Administrator considers necessary to facsimile (816) 329–4090. metallic, pressurized, low-wing, establish a level of safety equivalent to SUPPLEMENTARY INFORMATION: monoplane that seats nine passengers that established by the existing and two flightcrew. A single Pratt & airworthiness standards. Reason for No Prior Notice and Comment Before Adoption Whitney PT6E–67XP 6 engine driving a DATES: The effective date of these The FAA has determined, in special conditions is August 15, 2019. 1 http://rgl.faa.gov/Regulatory_and_Guidance_ The FAA must receive your accordance with 5 U.S. Code Library/rgSC.nsf/0/ comments by September 16, 2019. §§ 553(b)(3)(B) and 553(d)(3), that notice 1A102658468C62D386257950004D7183 ADDRESSES: Send comments identified and opportunity for prior public ?OpenDocument. 2 by docket number FAA–2019–0618 comment hereon are unnecessary https://www.govinfo.gov/app/details/FR-2015- because substantially identical special 09-23/2015-24156/summary. using any of the following methods: 3 https://www.govinfo.gov/app/details/FR-2017- b Federal eRegulations Portal: Go to conditions have been subject to the 07-17/2017-14936. http://www.regulations.gov and follow public comment process in several prior 4 https://www.federalregister.gov/documents/ the online instructions for sending your instances such that the FAA is satisfied 2019/04/26/2019-08476/special-conditions- comments electronically. that new comments are unlikely. For the costruzioni-aeronautiche-tecnam-spa-model-p2012- b Mail: Send comments to Docket same reason, the FAA finds that good airplane-electronic-engine. 5 See http://rgl.faa.gov/Regulatory_and_ Operations, M–30, U.S. Department of cause exists for making these special Guidance_Library/rgMakeModel.nsf/0/ Transportation (DOT), 1200 New Jersey conditions effective upon issuance. The 019EED2BA802A848862583360061A683 Avenue SE, Room W12–140, West FAA is requesting comments to allow ?OpenDocument&Highlight=a78eu. Building Ground Floor, Washington, DC interested persons to submit views that 6 As of this special condition publishing date, engine approval is in process. The final engine 20590–0001. may not have been submitted in model number will be updated on Type b Hand Delivery of Courier: Take response to the prior opportunities for Certification Data Sheet A78EU upon engine comments to Docket Operations in comment. approval completion.

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five bladed variable pitch constant Type Certification Basis Discussion speed Hartzell powers the Under the provisions of 14 CFR This airplane makes use of an airplane. The airplane has retractable 21.101, Pilatus must show that the electronic engine control system instead tricycle gear, a Honeywell Model PC–12/47E airplane, as changed, of a traditional mechanical control Primus APEX suite, and a continues to meet the applicable system, which is a novel design for this maximum takeoff weight of 10,450 provisions of the regulations type of airplane. The applicable pounds. incorporated by reference in Type airworthiness regulations do not contain The Model PC–12/47E is equipped Certificate No. A78EU or the applicable adequate or appropriate safety standards with a single Pratt & Whitney PT6E– regulations in effect on the date of for this design feature. Mandating a 67XP that uses an EEC system instead application for the change. The structured assessment to determine of a traditional mechanical control regulations incorporated by reference in potential installation issues mitigate system. Although the EEC is certificated the type certificate are commonly concerns that the addition of an with the engine, the installation of an referred to as the ‘‘original type electronic engine control does not EEC requires evaluation due to critical certification basis.’’ In addition to the produce a failure condition not environmental effects and possible original type certification basis, the FAA previously considered. effects on or by other airplane systems has determined that the Model PC–12/ 47E must also comply with § 23. 905(d) Applicability such as indirect effects of lightning, as amended by amendment 23–59, These special conditions are radio interference with other airplane § 23.1306 as amended by amendment applicable to the Model PC–12/47E electronic systems, and shared engine, 23–61, § 23.1308 as amended by airplane. Should Pilatus apply at a later airplane data, and power sources. amendment 23–57, and §§ 23.1309 and date for a change to the type certificate Sections 23.1306, 23.1308, and 23.1310 as amended by amendment 23– to include another model incorporating 23.1309 contain requirements for 62. the same novel or unusual design evaluating the installation of complex If the Administrator finds that the feature, the FAA would apply these systems, including electronic systems applicable airworthiness regulations in special conditions to that model as well. and critical environmental effects. part 23 do not contain adequate or Conclusion However, the use of EECs for engines appropriate safety standards for the was not envisioned when § 23.1309 was Model PC–12/47E airplane because of a This action affects only a certain published. The integral nature of these novel or unusual design feature, special novel or unusual design feature on the systems makes it necessary to ensure conditions are prescribed under the Model PC–12/47E airplane. It is not a proper evaluation of the airplane provisions of § 21.16. rule of general applicability. The FAA issues special conditions, as functions, which may be included in the List of Subjects in 14 CFR Part 23 EEC, and that the installation does not defined in § 11.19, under § 11.38 and Aircraft, Aviation safety, Signs and degrade the EEC reliability approved they become part of the type symbols. under part 33 during engine type certification basis under § 21.101. Special conditions are initially certification. Sections 23.1306(a) and Citation applicable to the model for which they 23.1308(a) apply to the EEC to ensure it are issued. Should the type certificate The authority citation for these remains equivalent to a mechanical only for that model be amended later to special conditions is as follows: system, which is not generally include any other model that susceptible to the High Intensity Authority: 49 U.S.C. 106(f), 106(g), 40113, incorporates the same novel or unusual 44701–44702; Pub. L. 113–53, 127 Stat. 584 Radiated Fields (HIRF) and lightning design feature, or should any other (49 U.S.C. 44704) note. environments. model already included on the same The Special Conditions In some cases, the airplane in which type certificate be modified to the engine is installed determines a incorporate the same novel or unusual Accordingly, pursuant to the higher classification than the engine design feature, the FAA would apply authority delegated to me by the controls are certificated for, requiring these special conditions to the other Administrator, the following special the EEC systems be analyzed at a higher model. conditions are issued as part of the type classification. As of November 2005, In addition to the applicable certification basis for Pilatus Aircraft EEC special conditions mandated the airworthiness regulations and special Ltd. Model PC–12/47E airplanes. § 23.1309 classification for loss of EEC conditions, the Model PC–12/47E must Installation of Electronic Engine control as catastrophic for any airplane. comply with the fuel vent and exhaust Control System This is not to imply an engine failure is emission requirements of 14 CFR part (a) For electronic engine control (EEC) classified as catastrophic, but that the 34 and the noise certification system installations, it must be EEC must provide an equivalent requirements of 14 CFR part 36; and the established that no single failure or reliability to mechanical engine FAA must issue a finding of regulatory malfunction or probable combinations controls. In addition, §§ 23.1141(e) and adequacy under § 611 of Public Law 92– of failures of EEC system components 25.901(b)(2) provide the fault tolerant 574, the ‘‘Noise Control Act of 1972.’’ will have an effect on the system, as design requirements of turbine engine Novel or Unusual Design Features installed in the airplane, that causes the mechanical controls to the EEC and The Model PC–12/47E airplane will Loss of Power Control (LOPC) ensure adequate inspection and incorporate the following novel or probability of the system to exceed maintenance intervals for the EEC. unusual design features: those allowed in part 33 certification. Part 23 did not envision the use of full The installation of an EEC system, (b) Electronic engine control system authority EECs and lacks the specific which is the generic family of electrical/ installations must be evaluated for regulatory requirements necessary to electronic engine control systems to environmental and atmospheric provide an adequate level of safety. include full authority digital engine conditions, including lightning and Therefore, special conditions are controls, supervisory controls, and High Intensity Radiated Fields (HIRF). necessary. derivatives of these controls. The EEC system lightning and HIRF

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effects that result in LOPC should be conditions contain the additional safety Reason for No Prior Notice and considered catastrophic. standards that the Administrator Comment Before Adoption (c) The components of the installation considers necessary to establish a level The FAA has determined, in must be constructed, arranged, and of safety equivalent to that established accordance with 5 U.S. Code installed to ensure their continued safe by the existing airworthiness standards. §§ 553(b)(3)(B) and 553(d)(3), that notice operation between normal inspections DATES: The effective date of these and opportunity for prior public or overhauls. special conditions is August 15, 2019. comment hereon are unnecessary (d) Functions incorporated into any because substantially identical special electronic engine control that make it The FAA must receive your conditions have been subject to the part of any equipment, systems or comments by September 16, 2019 public comment process in several prior installation whose functions are beyond ADDRESSES: Send comments identified instances such that the FAA is satisfied that of basic engine control, and which by docket number FAA–2019–0617 that new comments are unlikely. For the may also introduce system failures and using any of the following methods: same reason, the FAA finds that good malfunctions, are not exempt from b Federal eRegulations Portal: Go to cause exists for making these special § 23.1309 and must be shown to meet http://www.regulations.gov and follow conditions effective upon issuance. The part 23 levels of safety as derived from the online instructions for sending your FAA is requesting comments to allow § 23.1309. Part 33 certification data, if comments electronically. interested persons to submit views that applicable, may be used to show b Mail: Send comments to Docket may not have been submitted in compliance with any part 23 Operations, M–30, U.S. Department of response to the prior opportunities for requirements. If part 33 data is used to Transportation (DOT), 1200 New Jersey comment. substantiate compliance with part 23 Avenue SE, Room W12–140, West requirements, then the part 23 applicant Special Building Ground Floor, Washington, DC Company/airplane model must be able to provide this data for its 20590–0001. conditions No. showing of compliance. b Hand Delivery of Courier: Take 23–291–SC 1 ..... Innovation Solutions & Support, Note: The term ‘‘probable’’ in the context comments to Docket Operations in Inc.; Textron Aviation, Inc./ of ‘‘probable combination of failures’’ does Model B200. Room W12–140 of the West Building 2 not have the same meaning as used for a 23–283–SC ..... Pilatus Aircraft Ltd./Model PC– Ground Floor at 1200 New Jersey 24. safety assessment process. The term Avenue SE, Washington, DC, between 9 23–272–SC 3 ..... Cirrus Aircraft Corporation/Model ‘‘probable’’ in ‘‘probable combination of a.m., and 5 p.m., Monday through SF–50. failures’’ means ‘‘foreseeable,’’ or those failure conditions anticipated to occur one or Friday, except Federal holidays. more times during the operational life of each b Fax: Fax comments to Docket Comments Invited airplane. Operations at 202–493–2251. The FAA invites interested people to Privacy: The FAA will post all take part in this rulemaking by sending Issued in Kansas City, Missouri, on August comments it receives, without change, written comments, data, or views. The 9, 2019. to http://regulations.gov, including any most helpful comments reference a Pat Mullen, personal information the commenter specific portion of the special Manager, Small Airplane Standards Branch, provides. Using the search function of conditions, explain the reason for any Policy and Innovation Division, Aircraft the docket website, anyone can find and recommended change, and include Certification Service. read the electronic form of all comments supporting data. The FAA asks that you [FR Doc. 2019–17571 Filed 8–14–19; 8:45 am] received into any FAA docket, send two copies of written comments. BILLING CODE 4910–13–P including the name of the individual The FAA will consider all comments sending the comment (or signing the received on or before the closing date comment for an association, business, for comments. The FAA will consider DEPARTMENT OF TRANSPORTATION labor union, etc.). DOT’s complete comments filed late if it is possible to do so without incurring expense or Federal Aviation Administration Privacy Act Statement can be found in the Federal Register published on April delay. The FAA may change these special conditions based on the 14 CFR Part 23 11, 2000 (65 FR 19477–19478), as well as at http://DocketsInfo.dot.gov. comments received. [Docket No. FAA–2019–0617; Special Docket: Background documents or Conditions No. 23–294–SC] Background comments received may be read at On March 9, 2017, Pilatus Aircraft Special Conditions: Pilatus Aircraft http://www.regulations.gov at any time. Follow the online instructions for Ltd. (Pilatus) applied for FAA validation Ltd. Model PC–12/47E Airplanes; of its change to Type Certificate No. Autothrust System accessing the docket or go to the Docket 4 Operations in Room W12–140 of the A78EU for installation of an autothrust AGENCY: Federal Aviation West Building Ground Floor at 1200 system (ATS)—also known as an Administration (FAA), DOT. New Jersey Avenue SE, Washington, system—in the Model PC– 12/47E airplane. The Model PC–12/47E ACTION: Final special conditions; request DC, between 9 a.m., and 5 p.m., Monday for comments. through Friday, except Federal holidays. is a normal category, metallic, pressurized, low-wing, monoplane that SUMMARY: These special conditions are FOR FURTHER INFORMATION CONTACT: Jeff seats nine passengers and two issued for the Pilatus Aircraft Ltd. Pretz, AIR–691, Small Airplane flightcrew. A single Pratt & Whitney Model PC–12/47E airplane. This Standards Branch, Policy & Innovation airplane will have a novel or unusual Division, Aircraft Certification Service, 1 https://www.federalregister.gov/d/2018-28116. design feature associated with the use of Federal Aviation Administration, 901 2 https://www.federalregister.gov/d/2017-14938. an autothrust system. The applicable Locust, Room 301, Kansas City, MO 3 https://federalregister.gov/a/2015-31058. 4 _ _ airworthiness regulations do not contain 64106; telephone (816) 329–3239; See http://rgl.faa.gov/Regulatory and facsimile (816) 329–4090. Guidance_Library/rgMakeModel.nsf/0/ adequate or appropriate safety standards EED2BA802A848862583360061A683? for this design feature. These special SUPPLEMENTARY INFORMATION: OpenDocument&Highlight=a78eu.

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