AD 73-21-01
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
Corrosion and/or misrigging in the flight control and landing gear systems may result in binding or seizure of the joints and loss of flight control or collapse of the landing gear.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Lubricate all flight control and landing gear system rod end bearings with silicone spray or FAA approved equivalent within 25 hours time in service after July 10, 1972, and every 12 calendar months or 100 hours thereafter, whichever comes first. Install specified retracting links (P/N 530003-13 and 510011-13 or approved equivalents) on M20B, C, E, F, G and converted M20D models within 50 hours after July 10, 1972. Perform landing gear retraction tests and rigging checks at each lubrication interval.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 25 hours time in service after July 10, 1972, and thereafter at intervals not to exceed 12 calendar months or 100 hours time in service from the last inspection, whichever comes first. Install links within 50 hours time in service after July 10, 1972.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Mooney Models M20, M20A, M20B, M20C, M20D, M20E, M20F, M20G airplanes. M20D models converted to retractable gear require links. M20 and M20A need grease fittings added to existing links.
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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