AD 77-17-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Mooney Aviation Company Inc | M20 | Airworthiness Directives; Mooney Models M20, M20A, M20B, M20C, M20D, M20E, M20F, and M20G Airplanes |
| aircraft | Mooney Aviation Company Inc | M20A | Airworthiness Directives; Mooney Models M20, M20A, M20B, M20C, M20D, M20E, M20F, and M20G Airplanes |
| aircraft | Mooney Aviation Company Inc | M20B | Airworthiness Directives; Mooney Models M20, M20A, M20B, M20C, M20D, M20E, M20F, and M20G Airplanes |
| aircraft | Mooney Aviation Company Inc | M20C | Airworthiness Directives; Mooney Models M20, M20A, M20B, M20C, M20D, M20E, M20F, and M20G Airplanes |
| aircraft | Mooney Aviation Company Inc | M20D | Airworthiness Directives; Mooney Models M20, M20A, M20B, M20C, M20D, M20E, M20F, and M20G Airplanes |
| aircraft | Mooney Aviation Company Inc | M20E | Airworthiness Directives; Mooney Models M20, M20A, M20B, M20C, M20D, M20E, M20F, and M20G Airplanes |
| aircraft | Mooney Aviation Company Inc | M20F | Airworthiness Directives; Mooney Models M20, M20A, M20B, M20C, M20D, M20E, M20F, and M20G Airplanes |
| aircraft | Mooney Aviation Company Inc | M20G | Airworthiness Directives; Mooney Models M20, M20A, M20B, M20C, M20D, M20E, M20F, and M20G Airplanes |
Unsafe Condition
Failure of the control wheel shaft due to cracking with associated crack growth.
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Required Actions
Remove RH and LH control wheels and inspect the aft two inches of the control wheel shaft for cracks using visual and dye penetrant inspection methods. Replace or modify any cracked shafts with new original configuration shafts or strengthened configurations per Mooney Service Bulletin M20-205B before further flight. Reinstall control wheels.
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Compliance Time
Within the next 30 days after the effective date of this AD, unless already accomplished within the last 250 hours' time in service and thereafter at intervals not to exceed 500 hours' time in service from the last inspection.
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Affected Aircraft
Mooney Models M20, M20A, M20B, M20C, M20D, M20E, M20F, and M20G airplanes, certificated in all categories with over 1000 hours' time in service.
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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