AircraftDirectives
Airworthiness Directive

AD 2020-26-16 86 FR 3769

Federal Aviation Administration · 14 CFR part 39

FR document
2021-00044
Amendment
39-21371
Published
2021-01-15
Models covered
2
Last live check
2026-08-17

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AD

2020-26-16

FR doc 2021-00044 · 86 FR 3769

AD 2020-26-16Published 2021-01-15Effective 2021-02-16

Requires calculating the factored service hours for each main wing spar to determine when an inspection is required, inspecting the lower main wing spar bolt holes for cracks, and replacing any cracked main wing spar.

Full official abstract

The FAA is adopting a new airworthiness directive (AD) for certain Piper Aircraft, Inc. (Piper) Models PA-28-151, PA-28-161, PA- 28-181, PA-28-235, PA-28R-180, PA-28R-200, PA-28R-201, PA-28R-201T, PA- 28RT-201, PA-28RT-201T, PA-32-260, PA-32-300, PA-32R-300, PA-32RT-300, and PA-32RT-300T airplanes. This AD was prompted by a report of a wing separation caused by fatigue cracking in a visually inaccessible area of the lower main wing spar cap. This AD requires calculating the factored service hours for each main wing spar to determine when an inspection is required, inspecting the lower main wing spar bolt holes for cracks, and replacing any cracked main wing spar. The FAA is issuing this AD to address the unsafe condition on these products.

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Applies to 2 models in our index