AD Amdt-39-17688

final rule
Data completeness: 70%

Airworthiness Directives; Various Aircraft Equipped With Wing Lift Struts

AD Number
Amdt-39-17688
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2013-0023
FR Citation
78 FR 79599

Applicability

TypeManufacturerModelDetails
aircraft Piper Aircraft Airworthiness Directives; Various Aircraft Equipped With Wing Lift Struts

Unsafe Condition

Corrosion in wing lift struts and cracks in wing lift strut forks can lead to structural failure.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Inspect wing lift struts for corrosion and wing lift strut forks for cracks. Replace corroded wing lift struts and cracked wing lift strut forks. Replace wing lift strut forks at specified intervals for certain airplanes. Install a 'NO STEP' placard on the wing lift strut.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

Within 50 flight hours after the effective date of the AD.

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

Piper Aircraft, Inc. Model PA-18 airplanes, as well as other models listed in the AD, equipped with wing lift struts.

AI-generated summary from the source AD text. Verify against the official source before acting.

Source: Official FAA Source ↗

Retrieved: Apr 4, 2026

Rights: U.S. Government Public Domain

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