AD 87-25-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Columbia Helicopters, Inc. | 234 | Airworthiness Directives; BOEING HELICOPTER COMPANY (BOEING VERTOL) Model 234 Series Helicopters |
Unsafe Condition
Cracked aft landing gear spindle P/N 114L2322-5, -8, -9, or -11 could cause possible hazards in landing.
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Required Actions
Remove and replace aft landing gear spindles P/N 114L2322-5 and -8 with P/N 114L2322-9 or -11 within specified timeframes. Remove spindle P/N 114L2322-11 before 1,200 hours' time in service and P/N 114L2322-9 before 3,500 hours' time in service. Compliance must follow Boeing Vertol Service Bulletin No. 234-32-1009.
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Compliance Time
Within the next 25 hours' time in service after the effective date of this AD or before the accumulation of 1,200 hours' time in service, whichever comes later.
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Affected Aircraft
Boeing Helicopter Company (Boeing Vertol) Model 234 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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