AD 2003-24-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Piper | Aircraft | Airworthiness Directives; The New Piper Aircraft, Inc. Models PA-31, PA-31-300, PA-31-325, PA-31-350, PA-31P, PA-31T, PA-31T1, PA-31T2, PA-31T3, and PA-31P-350 Airplanes |
Unsafe Condition
Corrosion in the rudder torque tube assembly and rudder rib could result in failure of the rudder torque tube, leading to loss of rudder control.
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Required Actions
Install an inspection hole (or use the existing tooling hole in the rudder bottom rib), conduct a detailed visual inspection of the rudder torque tube and associated ribs for corrosion. If corrosion is found, replace or repair the rib/rudder torque tube assembly. Optionally, repair with an FAA-approved design if corrosion is less than 50% of thickness over an area less than two square inches.
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Compliance Time
Within 150 flight hours time-in-service (TIS) after the effective date.
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Affected Aircraft
The New Piper Aircraft, Inc. Models PA-31, PA-31-300, PA-31-325, PA-31-350, PA-31P, PA-31T, PA-31T1, PA-31T2, PA-31T3, and PA-31P-350 airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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