AD 77-14-14
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Piper Aircraft Inc. | PA-31 | Airworthiness Directives; Piper Models PA-31, PA-31-325, PA-31-350 Airplanes |
| aircraft | Piper Aircraft Inc. | PA-31-325 | Airworthiness Directives; Piper Models PA-31, PA-31-325, PA-31-350 Airplanes |
| aircraft | Piper Aircraft Inc. | PA-31-350 | Airworthiness Directives; Piper Models PA-31, PA-31-325, PA-31-350 Airplanes |
Unsafe Condition
Defective channel, part number 40358-5, installed in the right wing front spar may cause skin deformation and loose or missing rivets.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the right wing lower surface for skin deformation and loose/missing rivets before further flight. If damage exists, do not fly until assessed and repaired. If no damage, install a placard (for PA-31-350) and conduct visual checks after every 20 landings. Alter the right wing front spar within 50 hours in service using Piper Kit No. 761 137. Repairs and alterations require FAA approval.
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Compliance Time
within the next 50 hours in service after the effective date of this AD unless previously accomplished
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Affected Aircraft
Piper Models PA-31, PA-31-325, PA-31-350 with specified serial numbers: PA-31/PA-31-325 serials 31-7612064 through 31-7612110, 31-7712001 through 31-7712012, 31-7712014, 31-7712015, 31-7712017, 31-7712018, 31-7712020 through 31-7712023, 31-7712025 through 31-7712027; PA-31-350 serials 31-7652104 through 31-7652120, 31-7652122, 31-7652124, 31-7652125, 31-7652127, 31-7652129, 31-7652130, 31-7652132 through 31-7652135, 31-7652137, 31-7652139, 31-7652141, 31-7652142, 31-7652145, 31-7652147, 31-7652148, 31-7652150, 31-7652151, 31-7652153, 31-7652154, 31-7652156, 31-7652157, 31-7652159, 31-7652162 through 31-7652177, 31-7752001, 31-7752002, 31-7752004 through 31-7752006, 31-7752008, 31-7752009, 31-7752011, 31-7752012, 31-7752015, 31-7752019 through 31-7752022, 31-7752027 through 31-7752036, 31-7752038, 31-7752040, 31-7752042, and 31-7752047 through 31-7752049.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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