AD 78-08-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Piper Aircraft Inc. | PA-23 | Airworthiness Directives; Piper Models PA-23 and PA-23-160 Airplanes |
| aircraft | Piper Aircraft Inc. | PA-23-160 | Airworthiness Directives; Piper Models PA-23 and PA-23-160 Airplanes |
Unsafe Condition
Cracks in the rudder upper hinge reinforcing bracket P/N 17067-18 or rudder lower hinge bracket assembly P/N 17289-00 could cause hazards in flight.
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Required Actions
Inspect the rudder upper hinge reinforcement bracket P/N 17067-18 and rudder lower hinge bracket assembly P/N 17289-00 for cracks using dye penetrant or equivalent method. Repeat inspections at intervals not exceeding 1000 hours since last inspection. Replace cracked parts with undamaged same part number or equivalent before further flight.
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Compliance Time
Within the next 25 hours in service from the effective date of this AD or upon the attainment of 1000 total hours in service, whichever is later
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Affected Aircraft
Piper Models PA-23 and PA-23-160, Serial Nos. 23-1 and up
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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