AD 2013-05-21
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Eurocopter | France | Airworthiness Directives; Eurocopter France Helicopters |
Unsafe Condition
A cracked cabin vibration damper blade could result in failure of the blade, jamming of the flight controls, and subsequent loss of control of the helicopter.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Install a vibration damper casing assembly on both sides of the helicopter, following specific paragraphs in Eurocopter Alert Service Bulletin No. 53A008, depending on whether the helicopter has been modified with Modification 073521 or 073525.
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Compliance Time
Within 100 hours time-in-service.
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Affected Aircraft
Eurocopter France Model EC130 B4 helicopters with a cabin vibration damper installed, except those modified in accordance with Modification 073565.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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