2021-23-16: Aircraft Fuel Distribution, Electrical Power System Wiring

1. The authority citation for part 39 continues to read as follows: Authority: 49 U.S.C. 106(g), 40113, 44701. § 39.13 [Amended] 2. The FAA amends § 39.13 by adding the following new airworthiness directive: 2021-23-16 Pacific Aerospace Limited: Amendment 39-21814; Docket No. FAA-2021-0711; Project Identifier 2019-CE-024-AD. (a) Effective Date This airworthiness directive (AD) is effective January 11, 2022. (b) Affected ADs None. (c) Applicability This AD applies to Pacific Aerospace Limited Model 750XL airplanes, serial numbers 101 through 215 inclusive, 220, 8001, and 8002, certificated in any category, that are fitted with an air conditioner and/or a standby alternator, including airplanes configured for the installation of an air conditioner and/or a standby alternator, as shown in Figure 1 of Part A in Pacific Aerospace Mandatory Service Bulletin PACSB/XL/113, Issue 2, dated March 8, 2019 (MSB PACSB/XL/113, Issue 2). (d) Subject Joint Aircraft System Component (JASC) Code 2820, Aircraft Fuel Distribution, and 2497, Electrical Power System Wiring. (e) Unsafe Condition This AD was prompted by mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as chafing of the engine fuel feed line hoses. The FAA is issuing this AD to prevent chafing of the engine fuel feed line hoses with electrical wiring and the ignition exciter located forward of the engine firewall. The unsafe condition, if not addressed, could result in a fuel leak and fire. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Required Actions Within 50 hours time-in-service (TIS) or at the next annual inspection after the effective date of this AD, whichever occurs later, inspect the engine fuel feed line hoses and the electrical wiring for chafing and damage in accordance with the Accomplishment Instructions, Part A steps (3) and (4), in MSB PACSB/XL/113, Issue 2. (1) If there is any chafing or damage that penetrates the orange outer covering of the fuel line fire sleeve or if there is any chafed or damaged electrical wiring, before further flight, inspect the fuel hose for chafing, replace any chafed fire sleeve or fuel hose, and reroute all fuel lines in accordance with the Accomplishment Instructions, Part B, in MSB PACSB/XL/113, Issue 2. (2) If there are no chafed or damaged engine fuel feed line hoses and no chafed or damaged electrical wiring, within 50 hours TIS or at the next annual inspection, whichever occurs later, reroute all fuel lines in accordance with the Accomplishment Instructions, Part B, in MSB PACSB/XL/113, Issue 2. (h) Alternative Methods of Compliance (AMOCs) (1) The Manager, International Validation Branch, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or local Flight Standards District Office, as appropriate. If sending information directly to the manager of the certification office, send it to the attention of the person identified in paragraph (i)(1) of this AD or email: [email protected]. (2) Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the local flight standards district office/certificate holding district office. (i) Related Information (1) For more information about this AD, contact Mike Kiesov, Aviation Safety Engineer, General Aviation & Rotorcraft Section, International Validation Branch, FAA, 901 Locust, Room 301, Kansas City, MO 64106; phone: (816) 329-4144; fax: (816) 329-4090; email: [email protected]. (2) Refer to Civil Aviation Authority (CAA) of New Zealand AD DCA/750XL/37, effective April 25, 2019, for more information. You may examine the CAA AD in the AD docket at https://www.regulations.gov by searching for and locating Docket No. FAA-2021-0711. (j) Material Incorporated by Reference (1) The Director of the Federal Register approved the incorporation by reference of the service information listed in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51. (2) You must use this service information as applicable to do the actions required by this AD, unless the AD specifies otherwise. (i) Pacific Aerospace Mandatory Service Bulletin PACSB/XL/113, Issue 2, dated March 8, 2019. (ii) [Reserved] (3) For service information identified in this AD, contact the CAA of New Zealand, Level 15, Asteron Centre, 55 Featherston Street, Wellington 6011; phone: +64 4 560 9400; fax: +64 4 569 2024; email: [email protected]. (4) You may view this service information at FAA, Airworthiness Products Section, Operational Safety Branch, 901 Locust, Kansas City, MO 64106. For information on the availability of this material at the FAA, call (816) 329-4148. (5) You may view this service information that is incorporated by reference at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, email: [email protected], or go to: https://www.archives.gov/federal-register/cfr/ibr-locations.html. Issued on November 2, 2021. Lance T. Gant, Director, Compliance & Airworthiness Division, Aircraft Certification Service. [FR Doc. 2021-26496 Filed 12-6-21; 8:45 am]BILLING CODE 4910-13-P