AD 81-16-10
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Piper Aircraft Inc. | PA-44-180 | Airworthiness Directives; Piper Model PA-44-180 Airplanes In All Categories |
| aircraft | Piper Aircraft Inc. | PA-44-180T | Airworthiness Directives; Piper Model PA-44-180 Airplanes In All Categories |
Unsafe Condition
Cracks at the aileron outboard leading edge balance weight attachment screws could lead to an aileron out-of-balance condition and aeroelastic instability.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Visually check for cracks at the aileron outboard leading edge balance weight attachment screws before further flight. If cracks are found, install Piper's aileron rework kit (Part No. 764 148V) and make log book entries. If no cracks, log the visual check. Inspect using a 10-power magnifying glass at intervals not exceeding 25 hours until 100 hours time in service from the AD's effective date. After 100 hours, comply with paragraph (d) to reinforce the ailerons.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Compliance is required as indicated upon receipt of this directive, unless already accomplished.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Piper Model PA-44-180 Seminole, serial numbers 44-7995001 through 44-8195016; PA-44-180T Turbo Seminole, serial numbers 44-8107001 through 44-8107044.
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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