AD 58-23-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Mooney Aviation Company Inc | M20 | Airworthiness Directives; Mooney Model M-20 Aircraft |
Unsafe Condition
Failures of the aileron counterbalance buttweld at the aileron spar have occurred.
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Required Actions
Determine if a 3/8 inch O.D. x 0.028 inch x 3 inch steel reinforcing brace is installed. If not, remove paint from the welded joint and inspect for cracks, reweld the joint if cracks are present, and install the specified 4130 steel tubular brace trimmed to fit.
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Compliance Time
As soon as practicable but not later than December 15, 1958.
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Affected Aircraft
Mooney Model M-20 Aircraft Serial Numbers 1002 Through 1051.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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