AD 2014-20-13 Airworthiness Directives; Pacific Aerospace Limited Airplanes

Makes named: pacific aerospace. Models named: 750XL. Read the applicability below — it usually turns on serial or part numbers too.

This AD applies to Pacific Aerospace Limited Model 750XL airplanes, all serial numbers, certificated in any category.

Do the following actions as specified in paragraphs (f)(1) and (f)(2), including all subparagraphs, of this AD, unless already done: (1) Inspect the fin forward pickup fittings for cracks on or before 2,000 hours total time-in-service (TTIS) or 150 hours time-in-service (TIS) after November 12, 2014 (the effective date of this AD), whichever occurs later, and repetitively thereafter at intervals not to exceed 600 hours TIS or 12 months, whichever occurs first. Follow Pacific Aerospace Limited Mandatory Service Bulletin PACSB/XL/068, issue 3, dated May 29, 2014. Note 1 to paragraph (f)(1) of this AD: The MCAI mentions actions that are different for standard category versus restricted category airplanes. The Pacific Aerospace Limited Model 750XL airplane is only type certificated in the normal (standard) category in the United States so these are the actions that are specified in this AD. (2) If you find any cracks as a result of any inspection required by paragraph (f)(1) of this AD, before further flight, replace both plates. Do the replacement following Pacific Aerospace Limited Mandatory Service Bulletin PACSB/XL/068, issue 3, dated May 29, 2014.

The following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): The Manager, Standards Office, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. Send information to ATTN: Karl Schletzbaum, Aerospace Engineer, FAA, Small Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri 64106; telephone: (816) 329-4123; fax: (816) 329-4090; email: Karl.Schletzbaum@faa.gov. Before using any approved AMOC on any airplane to which the AMOC applies, notify your appropriate principal inspector (PI) in the FAA Flight Standards District Office (FSDO), or lacking a PI, your local FSDO. (2) Airworthy Product: For any requirement in this AD to obtain corrective actions from a manufacturer or other source, use these actions if they are FAA-approved. Corrective actions are considered FAA-approved if they are approved by the State of Design Authority (or their delegated agent). You are required to assure the product is airworthy before it is returned to service.

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 failure of the fin forward pickup due to possible fatigue cracks. We are issuing this proposed AD to detect and correct cracked fin forward pickup fittings to prevent failure of the fin forward pickup.

None.