Airworthiness directives › 2018-23-16
AD 2018-23-16 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.
Applicability*9
This AD applies to Pacific Aerospace Limited Model 750XL airplanes, serial numbers up to and including 200, certificated in any category.
Compliance
Unless already done, do the following actions in paragraphs (f)(1) through (3) of this AD. (1) Within 100 hours time-in-service (TIS) after January 10, 2019 (the effective date of this AD) or within 60 days after January 10, 2019 (the effective date of this AD), whichever occurs first, inspect the pitot static tubing adjacent to the flame arrestor for chafing damage. (2) If any chafing damage is found during the inspection required in paragraph (f)(1) of this AD, before further flight, repair or replace any damaged tubing and conduct a pitot and static leak check. (3) Within 100 hours TIS after January 10, 2019 (the effective date of this AD) or within 60 days after January 10, 2019 (the effective date of this AD), whichever occurs first, install an additional support clamp, protect plumbing with spiralwrap, and ensure proper clearance between the pitot tubes and the primary support at the flame arrester intersection. Follow paragraphs (3) through (6) of the Accomplishment Instructions in Pacific Aerospace Service Bulletin PACSB/XL/094, Issue 2, dated March 20, 2018.
Required actions
The following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): The Manager, Small Airplane Standards Branch, 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: Mike Kiesov, Aerospace Engineer, FAA, Small Airplane Standards Branch, 901 Locust, Room 301, Kansas City, Missouri 64106; telephone: (816) 329-4144; fax: (816) 329-4090; email: mike.kiesov@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) Contacting the Manufacturer: For any requirement in this AD to obtain corrective actions from a manufacturer, the action must instead be accomplished using a method approved by the Manager, Small Airplane Standards Branch, FAA; or Civil Aviation Authority of New Zealand (CAA).
Unsafe condition
This AD was prompted by mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and address an unsafe condition on an aviation product. The MCAI describes the unsafe condition as insufficient clearance between the pitot tubes and the primary support at the flame arrester intersection. We are issuing this AD to prevent chafing between the pitot-static plumbing and the flame arrestor, which could lead to damage of the pitot-static lines.
Affected ADs
None.
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