AD 2014-04-13
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Agusta | S.p.A. | Airworthiness Directives; Agusta S.p.A. Helicopters |
Unsafe Condition
Fatigue cracking of the tail rotor (T/R) blade that originated from surface damage, potentially leading to blade failure and loss of helicopter control.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect each T/R blade for cracks, corrosion, nicks, scratches, dents, or other damage using a 3X or higher magnifying glass. If damage is found, further inspect with a 10X magnifying glass. Remove and replace blades with cracks or damage exceeding repair limits. Repair or replace blades with damage within repair limits.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 25 hours time-in-service (TIS) or 30 days, whichever occurs first, and thereafter at intervals not to exceed 25 hours TIS or 30 days.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Agusta S.p.A. Model AB412 and AB412 EP helicopters.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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