AD 89-22-14
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Textron Aviation Inc. | 200 | Beech Models 90, 200, and 300 Series Airplanes |
| aircraft | Textron Aviation Inc. | 200C | Beech Models 90, 200, and 300 Series Airplanes |
| aircraft | Textron Aviation Inc. | 200CT | Beech Models 90, 200, and 300 Series Airplanes |
| aircraft | Textron Aviation Inc. | 200T | Beech Models 90, 200, and 300 Series Airplanes |
| aircraft | Textron Aviation Inc. | 300 | Beech Models 90, 200, and 300 Series Airplanes |
| aircraft | Textron Aviation Inc. | 300LW | Beech Models 90, 200, and 300 Series Airplanes |
| aircraft | Textron Aviation Inc. | B90 | Beech Models 90, 200, and 300 Series Airplanes |
| aircraft | Textron Aviation Inc. | C90 | Beech Models 90, 200, and 300 Series Airplanes |
| aircraft | Textron Aviation Inc. | C90A | Beech Models 90, 200, and 300 Series Airplanes |
| aircraft | Textron Aviation Inc. | E90 | Beech Models 90, 200, and 300 Series Airplanes |
Unsafe Condition
Possible aileron flutter due to the presence of foam in the aileron skins.
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Required Actions
Inspect each aileron using the tap procedure in Beech Service Bulletin No. 2256. If foam is found, remove it prior to further flight. Check airplane records for aileron replacements after January 1, 1985, and inspect those ailerons similarly.
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Compliance Time
within the next 100 hours time-in-service after the effective date of this AD, unless already accomplished
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Affected Aircraft
Beech Models 90, 200, and 300 series airplanes (all serial numbers)
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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