AD 78-21-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Piper Aircraft Inc. | PA-34-200T | Airworthiness Directives; Piper Aircraft Corporation Model PA-34-200T Airplanes |
Unsafe Condition
Fuel leak due to chafing of the fuel inlet line to the boost pump at the mixture control cable and propeller governor control cable.
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Required Actions
Inspect fuel inlet lines for chafing. Replace fuel lines if chafing is evident with approved Piper parts. Install protective sleeves and tie raps. Leak check fuel lines. Secure fuel lines to control cables as specified. Make maintenance record entries.
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Compliance Time
within the next ten hours' time in service after the effective date of this A.D.
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Affected Aircraft
Piper Aircraft Corporation Model PA-34-200T, serial numbers 34-7570001 through 34-7870207
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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