AD 78-26-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Piper Aircraft Inc. | PA-36-285 | Airworthiness Directives; Piper Models PA-36-285, PA-36-300, PA-36-375 Airplanes |
| aircraft | Piper Aircraft Inc. | PA-36-300 | Airworthiness Directives; Piper Models PA-36-285, PA-36-300, PA-36-375 Airplanes |
| aircraft | Piper Aircraft Inc. | PA-36-375 | Airworthiness Directives; Piper Models PA-36-285, PA-36-300, PA-36-375 Airplanes |
Unsafe Condition
Seizing of rod end bearings in the elevator and aileron control systems could cause hazards in flight.
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Required Actions
Inspect and replace rod end bearings in elevator and aileron system controls per Piper Service Bulletin No. 608 paragraphs 1-5, or equivalent. Equivalent inspections and parts require approval from the Chief, Engineering and Manufacturing Branch, FAA Eastern Region. Installation of Heim MSS-3D, -4D, -5D bearings (Piper part numbers 452633, 452590, 452645) cancels inspection requirements. Adjusted intervals may be approved via substantiating data through an FAA Maintenance Inspector.
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Compliance Time
Within the next ten hours in service from the effective date or upon attainment of 50 hours total time in service whichever is later, and at intervals not to exceed 50 hours in service from the last inspection.
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Affected Aircraft
Piper Models PA-36-285, PA-36-300 (serial numbers 36-7360001 thru 36-7760123, 36-7760125 thru 36-7860001, 36-7860003, 36-7860007, 36-7860010 thru 36-7860015, 36-7860017 thru 36-7860019, 36-7860021 thru 36-7860024, 36-7860027 thru 36-7860031, 36-7860034, 36-7860036, 36-7860041, 36-7860043 thru 36-7860045, 36-7860047, 36-7860049 thru 36-7860051, 36-7860061 thru 36-7860063, 36-7860069, 36-7860071, 36-7860073 thru 36-7860079, 36-7860081 thru 36-7860083, 36-7860086 thru 36-7860114, and 36-7860116) and PA-36-375 (serial numbers 36-7802002 thru 36-7802019, 36-7802021 thru 36-7802023, 36-7802025 thru 36-7802029, 36-7802031, 36-7802040 thru 36-7802042, and 36-7802049).
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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