AD 87-04-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Piper Aircraft Inc. | PA-46-310P | Airworthiness Directives; Piper Model PA-46-310P Airplanes |
Unsafe Condition
Failure of the alternate air valve linkage to be properly installed or adjusted could result in engine power loss.
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Required Actions
Inspect the alternate air valve linkage for proper installation. If not installed, install the Alternate Air Valve Modification Kit per Piper Service Letter 985. If installed, adjust the stop tab and cable housing per specified dimensions and procedures. Verify proper operation through testing.
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Compliance Time
within the next 25 hours time-in-service (TIS) after the effective date of this AD
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Affected Aircraft
Piper Model PA-46-310P airplanes with serial numbers 46-8408001 through 46-8608067, 4608001 through 4608018, 4608021, 4608023, and 4608025.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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