AD 93-21-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Schweizer Aircraft Corporation | 269A | Airworthiness Directives; SCHWEIZER AIRCRAFT CORPORATION AND HUGHES HELICOPTERS, INC. Model 269A, 269A-1, 269B, and TH-55A Series Helicopters |
| aircraft | Schweizer Aircraft Corporation | 269A-1 | Airworthiness Directives; SCHWEIZER AIRCRAFT CORPORATION AND HUGHES HELICOPTERS, INC. Model 269A, 269A-1, 269B, and TH-55A Series Helicopters |
| aircraft | Schweizer Aircraft Corporation | 269B | Airworthiness Directives; SCHWEIZER AIRCRAFT CORPORATION AND HUGHES HELICOPTERS, INC. Model 269A, 269A-1, 269B, and TH-55A Series Helicopters |
Unsafe Condition
Fatigue failure of the magnesium tailboom center attachment [saddle] fitting could result in loss of the tailboom and subsequent loss of control of the helicopter.
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Required Actions
Visually inspect the magnesium fitting and tailboom assembly for fretting, corrosion, and cracks using a 10-power or higher magnifying glass. Inspect the magnesium fitting for cracks using a dye penetrant inspection. Replace unairworthy magnesium fittings with an airworthy aluminum fitting, P/N 269A2324-13 (undrilled).
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Compliance Time
Required as indicated, unless accomplished previously.
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Affected Aircraft
Schweizer Aircraft Corporation and Hughes Helicopters, Inc. Model 269A, 269A-1, 269B, and TH-55A series helicopters, certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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