50-01-01: Engine Mount Reinforcement
FAA order 50-01-01 is an airworthiness directive. The FAA's subject line: Engine Mount Reinforcement. It names Mooney M-18: about 98 aircraft on the U.S. register today, though an order usually covers particular versions or serial numbers rather than every one. System: engine.
What it applies to as the FAA lists it
- Kind of product
- Aircraft
- Makes
- Mooney Mite Aircraft Corporation
- Models
- M-18L
- On this site
- Mooney M-18 98 registered
Dates and paperwork
- Docket
- Unknown
- Status
- Current
- The FAA's document
- Read the order on the FAA's site
The order itself the regulatory text, as published
Show the full text (610 characters)
50-01-01 MOONEY: Applies to All Model M-18L Aircraft.
Compliance required as soon as possible but not later than next 25 hours operating time and at each 25-hour period thereafter until reinforcement of engine mount lugs is accomplished.
Inspect the four engine mount lugs for cracks. If cracks are evident, reweld the lugs to mate with the mount holes on the engine and weld an X-4130 0.058-inch strap 1/2 x 3-inches to the lug and the side tube member. Further inspections are not necessary after the above reinforcement of the lugs is made.
(Mooney Service Bulletin No. 4 covers this same subject.)
Source: FAA Dynamic Regulatory System, airworthiness directives. The FAA's document is the authority; the register counts are this site's, from the FAA register of October 5, 2026. Connections as data: /graph/directive/50-01-01.json · aircraft systems.