AD 2021-04-15
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus | Helicopters Model AS355E | Airworthiness Directives; Airbus Helicopters |
| aircraft | Aviat | Various | Airworthiness Directives; Airbus Helicopters |
Unsafe Condition
cracking in the spar of the upper part of the vertical fin and fractures in the front attachment screws, which could lead to in-flight separation of the upper part of the vertical fin, resulting in loss of control of the helicopter.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
repetitive visual inspections of the right-hand side of the vertical fin spar for cracking and corrective action, including repair, as specified in EASA AD 2020-0186
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Compliance Time
Within 55 hours time-in-service
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Affected Aircraft
Airbus Helicopters Model AS355E, AS355F, AS355F1, AS355F2, AS355N and AS355NP helicopters; and certain Model AS350B3 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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