AD 47-43-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Cessna Aircraft Company | 120 | Airworthiness Directives; CESSNA Model 120 and 140 Airplanes |
| aircraft | Cessna Aircraft Company | 140 | Airworthiness Directives; CESSNA Model 120 and 140 Airplanes |
Unsafe Condition
Aileron support ribs may exhibit buckling or cracking in the narrow part of the web at the aft edge of the lightening hole and in the top flange just forward of the doubler plate due to high winds when controls are not locked.
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Required Actions
Inspect aileron support ribs for buckling or cracking whenever the airplane is tied down in high winds without controls locked and every 100 hours of operation. Replace damaged ribs with Cessna parts 0422200-2 (left) and 0422200-3 (right).
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Compliance Time
until Cessna parts 0422200-2 and 0422200-3 are installed
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Affected Aircraft
Cessna Model 120 and 140 Aircraft, serial numbers 8001 to 10209 inclusive.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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