AD 2008-24-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aviat | Various | Airworthiness Directives; Agusta S.p.A. Model A109A and A109A II Helicopters |
Unsafe Condition
Fatigue failure of a tail rotor blade, loss of a tail rotor, and subsequent loss of control of the helicopter.
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Required Actions
Before further flight, dye-penetrant inspect each tail rotor blade for cracks. Thereafter, at intervals not to exceed 100 hours time-in-service (TIS), repeat the dye-penetrant inspection. Visually inspect each blade for cracks using a 3 to 5 power magnifying glass before the first flight each day. Replace any cracked blade with an airworthy blade before further flight.
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Compliance Time
Before further flight
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Affected Aircraft
Agusta S.p.A. Model A109A and A109A II helicopters with tail rotor blades part number 109-0132-02-11, -15, and -121, with 400 or more hours time-in-service installed.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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