AD 71-20-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Schweizer Aircraft Corporation | 269A | Airworthiness Directives; Hughes Model 269A, 269A-1, and 269B Helicopters. |
| aircraft | Schweizer Aircraft Corporation | 269A-1 | Airworthiness Directives; Hughes Model 269A, 269A-1, and 269B Helicopters. |
| aircraft | Schweizer Aircraft Corporation | 269B | Airworthiness Directives; Hughes Model 269A, 269A-1, and 269B Helicopters. |
Unsafe Condition
Failures of idler pulley bearings due to the use of aluminum idler pulley shaft, P/N 269A5440.
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Required Actions
Remove aluminum idler pulley shaft P/N 269A5440 and bearings, install steel idler pulley shaft P/N 269A5438 and bearings P/N 269A5050-58 per Hughes Service Information Notice N-1.4 or equivalent. After initial compliance, replace bearings every 200 hours time in service per Hughes Service Information N-95 or equivalent.
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Compliance Time
Within 50 hours time in service after the effective date of this AD
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Affected Aircraft
Schweizer Aircraft Corporation Model 269A, 269A-1, and 269B Helicopters.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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