AD 75-22-10
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Enstrom Helicopter Corporation, The | 280 | Airworthiness Directives; Enstrom Model F-28A and 280 Helicopters |
| aircraft | Enstrom Helicopter Corporation, The | F-28A | Airworthiness Directives; Enstrom Model F-28A and 280 Helicopters |
Unsafe Condition
The unsafe condition is related to the potential for the tail rotor drive shaft to separate during flight, which could result in loss of control of the helicopter.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Conduct an inspection of the tail rotor drive shaft assembly for damage or wear, and replace the shaft if necessary. Revise the maintenance manual to include inspection procedures.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before the accumulation of 50 flight hours since the effective date of this AD, or at the next scheduled maintenance, whichever occurs first.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Enstrom Model F-28A and 280 helicopters with certain serial numbers as specified in the AD.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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