AD 2016-05-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Piper | Aircraft | Airworthiness Directives; Piper Aircraft, Inc. Airplanes |
Unsafe Condition
Cracks in the fuselage station (FS) at 317.75 upper bulkhead, which could cause structural failure of the vertical fin forward spar and lead to loss of control.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the bulkhead assembly at FS 317.75 for cracks, repair cracks as necessary, and install a reinforcement modification.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before or upon accumulating 2,000 hours time-in-service (TIS) or within the next 100 hours TIS after April 15, 2016, whichever occurs later, and repetitively thereafter at intervals not to exceed 100 hours TIS.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Piper Aircraft, Inc. Models PA-31, PA-31-300, PA-31-325, and PA-31-350, with specific serial number ranges.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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