AD 2000-25-54
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Agusta | S.p.A. Model A109E | Airworthiness Directives; Agusta S.p.A. Model A109E Helicopters |
Unsafe Condition
Cracked tail rotor blades, which could result in failure of a blade and subsequent loss of control of the helicopter.
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Required Actions
Visually check both sides of each tail rotor blade before each engine start. Inspect each blade for cracks using a 5-power or higher magnifying glass within 10 hours time-in-service (TIS) and thereafter at intervals not exceeding 10 hours TIS or before the next flight after any abnormal tail rotor vibration. Dye-penetrant inspect each blade for cracks within 25 hours TIS and thereafter at intervals not exceeding 25 hours TIS. Replace any cracked blade with an airworthy blade before further flight.
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Compliance Time
Before further flight for cracked blades; within 10 hours TIS for magnifying glass inspection; within 25 hours TIS for dye-penetrant inspection.
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Affected Aircraft
Agusta S.p.A. Model A109E helicopters, part number 109-8132-01-109.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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