60896 Federal Register / Vol. 85, No. 189 / Tuesday, September 29, 2020 / Rules and Regulations

DEPARTMENT OF TRANSPORTATION any comments received, and other may examine the MCAI on the internet information. The address for Docket at https://www.regulations.gov by Federal Aviation Administration Operations is Docket Operations, U.S. searching for and locating Docket No. Department of Transportation, Docket FAA–2019–0412. 14 CFR Part 39 Operations, M–30, West Building Comments [Docket No. FAA–2019–0412; Product Ground Floor, Room W12–140, 1200 Identifier 2018–CE–030–AD; Amendment New Jersey Avenue SE, Washington, DC The FAA gave the public the 39–21253; AD 2020–19–10] 20590. opportunity to participate in developing FOR FURTHER INFORMATION CONTACT: this final rule. No comments were RIN 2120–AA64 Mike Kiesov, Aerospace Engineer, FAA, received on the NPRM or on the Airworthiness Directives; Piaggio Aero General Aviation & Rotorcraft Section, determination of the cost to the public. Industries S.p.A. International Validation Branch, 901 Conclusion Locust, Room 301, Kansas City, AGENCY: Federal Aviation Missouri 64106; telephone: (816) 329– The FAA reviewed the relevant data Administration (FAA), DOT. 4144; fax: (816) 329–4090; email: and determined that air safety and the ACTION: Final rule. [email protected]. public interest require adopting this SUPPLEMENTARY INFORMATION: final rule as proposed. SUMMARY: The FAA is adopting a new airworthiness directive (AD) for Piaggio Discussion Related Service Information Under 1 CFR Part 51 Aero Industries S.p.A. Model P–180 The FAA issued a notice of proposed airplanes. This AD results from rulemaking (NPRM) to amend 14 CFR The FAA reviewed Piaggio Aerospace mandatory continuing airworthiness part 39 by adding an AD that would Service Bulletin No. 80–0325, Revision information (MCAI) issued by an apply to all Piaggio Aero Industries 0, dated August 10, 2017 (SB 80–0325), aviation authority of another country to S.p.A. Model P–180 airplanes. The and Piaggio Aerospace P.180 AVANTI identify and correct an unsafe condition NPRM published in the Federal II/EVO Temporary Change No. 89, dated on an aviation product. The MCAI Register on June 5, 2019 (84 FR 26025). August 30, 2017 (Temporary Change describes the unsafe condition as The NPRM proposed to correct an 89), to the airplane flight manual (AFM). insufficient sealing of a steering select/ unsafe condition for the specified SB 80–0325 contains procedures for bypass valve installed in the nose products and was based on mandatory doing a NLG steering manifold leakage landing gear (NLG) manifold. The FAA continuing airworthiness information test. Temporary Change 89 contains is issuing this AD to address the unsafe (MCAI) originated by the European emergency operating procedures for the condition on these products. Aviation Safety Agency (EASA), which pilot to follow if the NLG steering DATES: This AD is effective November 3, is the Technical Agent for the Member system fails. This service information is 2020. States of the European Union. EASA reasonably available because the The Director of the Federal Register issued AD No. 2017–0229, dated interested parties have access to it approved the incorporation by reference November 21, 2017 (referred to after this through their normal course of business of certain publications listed in this AD as ‘‘the MCAI’’), which states: or by the means identified in the as of November 3, 2020. An occurrence was reported of finding ADDRESSES section. ADDRESSES: For service information insufficient sealing of a Steering Select/ Other Related Service Information identified in this final rule, contact Bypass Valve installed on the nose landing Piaggio Aero Industries S.p.A, gear (NLG) Steering Manifold of a P.180 The FAA reviewed Piaggio Aerospace Airworthiness Office, Via Pionieri e aeroplane. Service Bulletin No. 80–0425, Revision This condition, if not detected and 0, dated March 30, 2017 (SB 80–0425); Aviatori d’Italia snc, 16154 Genova, corrected, could lead to uncommanded Italy; phone: +39 010 0998046; email: deflection of the NLG wheel, possibly Piaggio Aerospace Service Bulletin No. [email protected]; and resulting in reduced control of the aeroplane 80–0454, Revision 0, March 6, 2017 (SB internet: https:// on the ground, with consequent damage to 80–0454); and Temporary Change No. www.piaggioaerospace.it/en/customer- the aeroplane and injury to occupants. 89 Errata Corrige, dated December 20, support. You may review this To address this potential unsafe condition, 2017 (Temporary Change 89EC). SB 80– referenced service information at the PAI issued Service Bulletin (SB) 80–0325 to 0425 and SB 80–0454 both contain provide inspection and rectification FAA, Airworthiness Products Section, procedures for replacing the main instructions. landing gear and the NLG steering Operational Safety Branch, 901 Locust, For the reason described above, this Kansas City, Missouri 64106. For [EASA] AD requires a leak test of the NLG system on the applicable airplanes. information on the availability of this Steering Manifold and, depending on the Temporary Change 89EC revises the material at the FAA, call (816) 329– finding(s), accomplishment of applicable cover page of Temporary Change 89 to 4148. It is also available on the internet corrective action(s). This [EASA] AD also clarify the applicability of the change. requires amendment of the applicable at https://www.regulations.gov by Costs of Compliance searching for and locating Docket No. Aircraft Flight Manual (AFM). FAA–2019–0412. The MCAI further notes that airplanes The FAA estimates that this AD will with NLG steering manifold part affect 130 products of U.S. registry. The Examining the AD Docket number 72608 installed are known to FAA also estimates that it will take You may examine the AD docket on include manufacturing serial numbers about 2.5 work-hours per product to the internet at https:// 1001, 3001, 3003, 3004, 3006, 3007, and comply with the basic requirements of www.regulations.gov by searching for 3008, and also include airplanes that this AD. The average labor rate is $85 and locating Docket No. FAA–2019– have incorporated Piaggio Aerospace per work-hour. 0412; or in person at Docket Operations Service Bulletin No. 80–0425, Revision Based on these figures, the FAA between 9 a.m. and 5 p.m., Monday 0, dated March 30, 2017, and Piaggio estimates the cost of this AD on U.S. through Friday, except Federal holidays. Aerospace Service Bulletin No. 80– operators to be $27,625, or $212.50 per The AD docket contains this final rule, 0454, Revision 0, March 6, 2017. You product.

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If necessary, the FAA estimates that PART 39—AIRWORTHINESS (3) For all airplanes, within 30 days after replacing a NLG steering manifold DIRECTIVES the effective date of this AD, revise the would take about 10 work-hours and airplane flight manual (AFM) by replacing require parts costing $50,058, for a cost ■ 1. The authority citation for part 39 certain pages in the Emergency Procedures continues to read as follows: section of the AFM by following the of $50,908 per product. The FAA has no Instructions in Piaggio Aerospace P.180 way of determining the number of Authority: 49 U.S.C. 106(g), 40113, 44701. AVANTI II/EVO Temporary Change No. 89, products that may need these actions. § 39.13 [Amended] dated August 30, 2017. Authority for This Rulemaking ■ 2. The FAA amends § 39.13 by adding (g) Alternative Methods of Compliance The Manager, International Validation Title 49 of the United States Code the following new airworthiness directive (AD): Branch, FAA, has the authority to approve specifies the FAA’s authority to issue AMOCs for this AD, if requested using the rules on aviation safety. Subtitle I, 2020–19–10 Piaggio Aero Industries S.p.A.: procedures found in 14 CFR 39.19. Send section 106, describes the authority of Amendment 39–21253; Docket No. information to ATTN: Mike Kiesov, the FAA Administrator. Subtitle VII: FAA–2019–0412; Product Identifier Aerospace Engineer, FAA, General Aviation 2018–CE–030–AD. Aviation Programs, describes in more & Rotorcraft, International Validation Branch, detail the scope of the Agency’s (a) Effective Date 901 Locust, Room 301, Kansas City, Missouri authority. This AD is effective November 3, 2020. 64106; telephone: (816) 329–4144; fax: (816) 329–4090; email: [email protected]. The FAA is issuing this rulemaking (b) Affected ADs Before using any approved AMOC on any under the authority described in None. airplane to which the AMOC applies, notify Subtitle VII, Part A, Subpart III, Section your appropriate principal inspector (PI) in 44701: General requirements. Under (c) Applicability the FAA Flight Standards District Office that section, Congress charges the FAA This AD applies to Piaggio Aero Industries (FSDO), or lacking a PI, your local FSDO. S.p.A. Model P–180 airplanes, certificated in with promoting safe flight of civil (g) Related Information any category. aircraft in air commerce by prescribing Refer to MCAI European Aviation Safety regulations for practices, methods, and (d) Subject Agency AD No. 2017–0229, dated November procedures the Administrator finds Air Transport Association of America 21, 2017, for related information. You may necessary for safety in air commerce. (ATA) Code 32: Landing Gear. examine the MCAI on the internet at https:// www.regulations.gov by searching for and This regulation is within the scope of (e) Reason that authority because it addresses an locating Docket No. FAA–2019–0412. This AD was prompted by mandatory unsafe condition that is likely to exist or continuing airworthiness information (MCAI) (h) Material Incorporated by Reference develop on products identified in this originated by an aviation authority of another (1) The Director of the Federal Register rulemaking action. country to identify and correct an unsafe approved the incorporation by reference condition on an aviation product. The MCAI Regulatory Findings (IBR) of the service information listed in this describes the unsafe condition as insufficient paragraph under 5 U.S.C. 552(a) and 1 CFR sealing of a steering select/bypass valve This AD will not have federalism part 51. installed in the nose landing gear (NLG) (2) You must use this service information implications under Executive Order manifold. The FAA is issuing this AD to as applicable to do the actions required by 13132. This AD will not have a detect and correct insufficient sealing of the this AD, unless the AD specifies otherwise. substantial direct effect on the States, on steering select/bypass valve in the NLG (i) Piaggio Aerospace Service Bulletin No. the relationship between the national steering manifold, which could lead to un- 80–0325, Revision 0, dated August 10, 2017 government and the States, or on the commanded NLG wheel turns with (SB 80–0325). distribution of power and consequent lateral runway departure. (ii) Piaggio Aerospace P.180 AVANTI II/ responsibilities among the various (f) Actions and Compliance EVO Temporary Change No. 89, dated August 30, 2017 (Temporary Change 89). levels of government. Unless already done, do the following (3) For Piaggio Aerospace service actions in paragraphs (f)(1) through (3) of this For the reasons discussed above, I information identified in this AD, contact AD. Piaggio Aero Industries S.p.A, Airworthiness certify that this AD: (1) For airplanes with NLG steering (1) Is not a ‘‘significant regulatory manifold part number (P/N) 72608 installed: Office, Via Pionieri e Aviatori d’Italia snc, 16154 Genova, Italy; phone: +39 010 action’’ under Executive Order 12866, (i) Within 50 hours time-in service after the effective date of this AD, do a steering 0998046; email: airworthiness@ (2) Will not affect intrastate aviation manifold pressure leakage test and, if there piaggioaerospace.it; and internet: https:// in Alaska, and is steering actuator movement during the test, www.piaggioaerospace.it/en/customer- replace the NLG steering manifold and repeat support. (3) Will not have a significant (4) You may view this service information economic impact, positive or negative, the test by following the Accomplishment Instructions, procedure steps (1) through at the FAA, Airworthiness Products Section, on a substantial number of small entities (24), in Piaggio Aerospace Service Bulletin Operational Safety Branch, 901 Locust, under the criteria of the Regulatory No. 80–0325, Revision 0, dated August 10, Kansas City, Missouri 64106. For information Flexibility Act. 2017. on the availability of this material at the (ii) If steering actuator movement occurs FAA, call 816–329–4148. In addition, you List of Subjects in 14 CFR Part 39 during procedure step (9) or procedure step can access this service information on the (15) of the leakage test required in paragraph internet at https://www.regulations.gov by Air transportation, Aircraft, Aviation (f)(1)(i) of this AD, replacing the NLG steering searching for and locating Docket No. FAA– safety, Incorporation by reference, manifold and repeating the steering manifold 2019–0412. Safety. pressure leakage test is required before (5) You may view this service information further flight. that is incorporated by reference at the Adoption of the Amendment (2) For all airplanes, after the effective date National Archives and Records of this AD, do not install NLG steering Administration (NARA). For information on Accordingly, under the authority manifold P/N 72608 on any airplane unless the availability of this material at NARA, delegated to me by the Administrator, it has been inspected as specified in email [email protected], or go to: https:// the FAA amends 14 CFR part 39 as paragraph (f)(1) of this AD and no steering www.archives.gov/federal-register/cfr/ibr- follows: actuator movement occurred. locations.html.

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Issued on September 10, 2020. Examining the AD Docket parts from service, regardless of the Lance T. Gant, You may examine the AD docket on engine on which they are installed. The Director, Compliance & Airworthiness the internet at https:// FAA is revising the Applicability Division, Aircraft Certification Service. www.regulations.gov by searching for section of this AD as suggested by the [FR Doc. 2020–21392 Filed 9–28–20; 8:45 am] and locating Docket No. FAA–2020– commenter. This change does not BILLING CODE 4910–13–P 0555; or in person at Docket Operations expand the scope of this AD because the between 9 a.m. and 5 p.m., Monday number of affected engines installed on through Friday, except Federal holidays. airplanes of U.S. registry remains the DEPARTMENT OF TRANSPORTATION The AD docket contains this final rule, same in this final rule compared to what any comments received, and other was published in the NPRM. Federal Aviation Administration information. The address for Docket Support for the AD Operations is U.S. Department of 14 CFR Part 39 Transportation, Docket Operations, M– The Air Line Pilots Association, 30, West Building Ground Floor, Room International; the Boeing Company; and [Docket No. FAA–2020–0555; Project W12–140, 1200 New Jersey Avenue SE, United Airlines Engineering expressed Identifier AD–2020–00615–E; Amendment Washington, DC 20590. support for the AD as written. 39–21267; AD 2020–20–11] FOR FURTHER INFORMATION CONTACT: Conclusion Mehdi Lamnyi, Aerospace Engineer, RIN 2120–AA64 The FAA reviewed the relevant data, ECO Branch, FAA, 1200 District considered the comments received, and Avenue, Burlington, MA 01803; phone: Airworthiness Directives; General determined that air safety and the 781–238–7743; fax: 781–238–7199; Electric Company Turbofan Engines public interest require adopting this email: [email protected]. final rule with the changes described AGENCY: Federal Aviation SUPPLEMENTARY INFORMATION: Administration (FAA), DOT. previously and minor editorial changes. Discussion The FAA has determined that these ACTION: Final rule. minor changes: The FAA issued a notice of proposed • SUMMARY: The FAA is adopting a new rulemaking (NPRM) to amend 14 CFR Are consistent with the intent that airworthiness directive (AD) for certain part 39 by adding an AD that would was proposed in the NPRM for General Electric Company (GE) GEnx– addressing the unsafe condition; and apply to certain GE GEnx–1B64/P2, • 1B64/P2, –1B67/P2, –1B70/P2, –1B70C/ –1B67/P2, –1B70/P2, –1B70C/P2, Do not add any additional burden P2, –1B70/75/P2, –1B74/75/P2, –1B76/ –1B70/75/P2, –1B74/75/P2, –1B76/P2, upon the public than was already P2, –1B76A/P2, and GEnx–2B67/P –1B76A/P2, and GEnx–2B67/P model proposed in the NPRM. model turbofan engines. This AD was turbofan engines. The NPRM published The FAA also determined that these prompted by the detection of melt- in the Federal Register on June 8, 2020 changes will not increase the economic related freckles in the billet, which may (85 FR 35021). The NPRM was burden on any operator or increase the reduce the life limits of certain high- prompted by the detection of melt- scope of this final rule. pressure turbine (HPT) rotor stage 2 related freckles in the billet, which may Related Service Information disks and a certain stages 6–10 reduce the life limits of certain HPT compressor rotor spool. This AD rotor stage 2 disks and a certain stages The FAA reviewed GE GEnx–1B requires the removal of certain HPT 6–10 compressor rotor spool. The NPRM Service Bulletin (SB) 72–0473 R00, rotor stage 2 disk and the removal of a proposed to require the removal of dated April 14, 2020; GE GEnx–1B SB certain stages 6–10 compressor rotor certain HPT rotor stage 2 disk and the 72–0474 R00, dated April 14, 2020; and spool before reaching their new life removal of a certain stages 6–10 GE GEnx–2B SB 72–0416 R00, dated limits. The FAA is issuing this AD to compressor rotor spool before reaching April 14, 2020. GE GEnx–1B SB 72– address the unsafe condition on these their new life limits. The FAA is issuing 0473 R00 describes procedures for products. this AD to address the unsafe condition removing and replacing the HPT rotor on these products. stage 2 disks on GE GEnx–1B model DATES: This AD is effective November 3, engines. GE GEnx–1B SB 72–0474 R00 2020. Comments describes procedures for removing and ADDRESSES: For service information The FAA gave the public the replacing the stages 6–10 compressor identified in this final rule, contact opportunity to participate in developing rotor spool on GE GEnx–1B model General Electric Company, 1 Neumann this final rule. The following presents engines. GE GEnx–2B SB 72–0416 R00 Way, Cincinnati, OH 45215; phone: the comments received on the NPRM describes procedures for removing and (513) 552–3272; email: and the FAA’s response to each replacing the HPT rotor stage 2 disks on [email protected]; comment. GE GEnx–2B model engines. website: www.ge.com. You may view this service information at the FAA, Request to List Part and Serial Numbers Costs of Compliance Airworthiness Products Section, GE requested that both the affected The FAA estimates that this AD Operational Safety Branch, 1200 District part and serial numbers be listed in the affects two engines installed on Avenue, Burlington, MA 01803. For Applicability section of this AD instead airplanes of U.S. registry; one engine information on the availability of this of the affected engine serial numbers. requires the HPT rotor stage 2 disk material at the FAA, call 781–238–7759. The FAA agrees. The FAA recognizes replacement and one engine requires the It is also available on the internet at that affected HPT rotor stage 2 disks stages 6–10 compressor rotor spool https://www.regulations.gov by could be moved from one engine to replacement. searching for and locating Docket No. another engine. The intent of this AD is The FAA estimates the following FAA–2020–0555. to mandate the removal of the affected costs to comply with this AD:

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