AD 2021-21-08
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aviat | Various | Airworthiness Directives; Leonardo S.p.a. Helicopters |
Unsafe Condition
damage (burns) on the tail rotor blades (TRBs). The unsafe condition, if not addressed, could result in loss of a TRB, possibly resulting in reduced control of the helicopter.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
an inspection of each TRB for the general condition and any evidence of burns and replacement if necessary, as specified in EASA AD 2019-0073.
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Compliance Time
Within 50 flight hours
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Affected Aircraft
Leonardo S.p.a. Model AB139 and AW139 helicopters, certificated in any category, as identified in European Union Aviation Safety Agency (EASA) AD 2019-0073, dated March 28, 2019 (EASA AD 2019-0073).
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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