AD 77-08-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Piper Aircraft Inc. | PA-24 | Airworthiness Directives; Piper Models PA-24, PA-24-250, PA-24-260, PA-24-400, PA-30, and PA-39 Airplanes |
| aircraft | Piper Aircraft Inc. | PA-24-250 | Airworthiness Directives; Piper Models PA-24, PA-24-250, PA-24-260, PA-24-400, PA-30, and PA-39 Airplanes |
| aircraft | Piper Aircraft Inc. | PA-24-260 | Airworthiness Directives; Piper Models PA-24, PA-24-250, PA-24-260, PA-24-400, PA-30, and PA-39 Airplanes |
| aircraft | Piper Aircraft Inc. | PA-24-400 | Airworthiness Directives; Piper Models PA-24, PA-24-250, PA-24-260, PA-24-400, PA-30, and PA-39 Airplanes |
| aircraft | Piper Aircraft Inc. | PA-30 | Airworthiness Directives; Piper Models PA-24, PA-24-250, PA-24-260, PA-24-400, PA-30, and PA-39 Airplanes |
| aircraft | Piper Aircraft Inc. | PA-39 | Airworthiness Directives; Piper Models PA-24, PA-24-250, PA-24-260, PA-24-400, PA-30, and PA-39 Airplanes |
Unsafe Condition
Aileron spar cracks could cause possible hazards in flight.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect and alter as necessary in accordance with Piper Service Letter No. 787 dated December 1, 1976, or equivalent. If Aileron Outboard Hinge Bracket Replacement Kit No. 760 914 or equivalent is incorporated, compliance with this AD may be dispensed with.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the next 100 hours in service from the effective date of this AD or upon the attainment of 1000 total hours in service, whichever is later, and at intervals not to exceed 100 hours in service from the last inspection.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Piper Models PA-24, PA-24-250, PA-24-260, PA-24-400, PA-30, and PA-39 Airplanes with specific serial ranges: PA-24/PA-24-250/PA-24-260 (24-1 to 24-5047), PA-24-400 (26-2 to 26-148), PA-30 (30-2 to 30-2000), PA-39 (39-1 to 39-155), except aircraft with Piper Kit number 760 914.
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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