AD 78-08-12
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Piper Aircraft Inc. | PA-31T | Airworthiness Directives; Piper Aircraft Model PA-31T |
Unsafe Condition
Failure to reprogram the flap selector when the selector is inadvertently moved beyond the 'Approach' detent during flap position selection could result in unintended flap retraction to the original position.
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Required Actions
Insert a CAUTION in the FAA-approved Airplane Flight Manual (Piper Report 1740) or Pilot's Operating Handbook (Piper Report 2048) specifying that the flap selector must be returned to its original position and then back to 'Approach' to reprogram the selector after inadvertent movement beyond the 'Approach' detent.
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Compliance Time
Effective April 26, 1978
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Affected Aircraft
Piper Aircraft Model PA-31T certificated in all categories.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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