2021-21-10: Aircraft Fuel System

1. The authority citation for part 39 continues to read as follows: Authority: 49 U.S.C. 106(g), 40113, 44701. 2. The FAA amends § 39.13 by adding the following new airworthiness directive: 2021-21-10 Pacific Aerospace Limited: Amendment 39-21770; Docket No. FAA-2021-0603; Project Identifier 2019-CE-006-AD. (a) Effective Date This airworthiness directive (AD) is effective December 10, 2021. (b) Affected ADs None. (c) Applicability This AD applies to Pacific Aerospace Limited Model 750XL airplanes, serial numbers 100 through 205, 207 through 213, and 8001, certificated in any category. (d) Subject Joint Aircraft System Component (JASC) Code 2800, Aircraft Fuel System. (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 damage in the port wing skin caused by the fuel system finger filters. The FAA is issuing this AD to detect and correct chafing in the left hand (LH) wing leading edge tank skin, which if not detected and corrected, could result in a port wing fuel leak and lead to engine failure or fire. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Required Actions Within 165 hours time-in-service after the effective date of this AD, modify the LH inspection panel assembly and inspect the LH wing and fuel tank for chafing, and then, before further flight, repair any chafing and install the panels in accordance with the Accomplishment Instructions in Pacific Aerospace Limited Mandatory Service Bulletin PACSB/XL/099, Issue 1, dated January 16, 2019. (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 No. DCA/750XL/34, effective date February 7, 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-2021-0603. (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 Limited Mandatory Service Bulletin PACSB/XL/099, Issue 1, dated January 16, 2019. (ii) [Reserved] (3) For service information identified in this AD, contact the Civil Aviation Authority 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 October 8, 2021. Lance T. Gant, Director, Compliance & Airworthiness Division, Aircraft Certification Service. [FR Doc. 2021-24084 Filed 11-4-21; 8:45 am]BILLING CODE 4910-13-P