AD 86-18-10
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Piper Aircraft Inc. | PA-42-1000 | Airworthiness Directives; Piper Model PA-42-1000 Airplanes |
Unsafe Condition
Blockage or deformation of the wing tip tank vent lines could result in loss of power and wing damage.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Fabricate a checking device from 3/8 inch O.D. polyethylene plastic tubing and inspect vent lines by inserting the device up to the 40 inch mark. If insertion is blocked, drain fuel, remove access covers, visually inspect lines for blockage or deformation, replace blocked or deformed lines, reinstall access plates with specified sealant, and check for leaks. Report defects found within five days.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 10 hours time in service after receipt of this AD, unless already accomplished
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Affected Aircraft
Piper Model PA-42-1000 airplanes with serial numbers 42-5527002 through 42-5527033
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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