Airworthiness Directive · Amendment 39-19504 · Navigation
Pacific Aerospace Limited Airplanes
This AD applies to Pacific Aerospace Limited Model 750XL airplanes, serial numbers up to and including 200, certificated in any category.
We are adopting a new airworthiness directive (AD) for Pacific Aerospace Limited Model 750XL airplanes. This AD results from mandatory continuing airworthiness information (MCAI) issued 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 insufficient clearance between the pitot tubes and the primary support at the flame arrester intersection. We are issuing this AD to require actions to address the unsafe condition on these products.
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.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
