AD 2001-17-16
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Agusta | S.p.A. Model A109E | Airworthiness Directives; Agusta S.p.A. Model A109E Helicopters |
Unsafe Condition
Cracks in tail rotor blades, part numbers 109-8132-01-109 and 109-8132-01-107, could lead to blade failure and subsequent loss of control of the helicopter.
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Required Actions
Visually check both sides of each blade before each engine start. Inspect each blade using a 5-power or higher magnifying glass within 10 hours time-in-service (TIS) or before the next flight after abnormal tail rotor vibration. Perform dye-penetrant inspection within 25 hours TIS. Replace any cracked blade with an airworthy blade before further flight.
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Compliance Time
Within 10 hours TIS for magnifying glass inspection, within 25 hours TIS for dye-penetrant inspection, and before further flight for blade replacement.
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Affected Aircraft
Agusta S.p.A. Model A109E helicopters with tail rotor blades part numbers 109-8132-01-109 and 109-8132-01-107.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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