AD 2021-12-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus | Helicopters Model EC155B1 | Airworthiness Directives; Airbus Helicopters |
| aircraft | Aviat | Various | Airworthiness Directives; Airbus Helicopters |
Unsafe Condition
jamming of the affected door jettisoning mechanism, which could reduce the ability of the flightcrew to evacuate in the event of an emergency situation.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
a functional check of the pilot and co-pilot door jettisoning system and corrective actions if necessary, as specified in an EASA AD, which includes greasing the tenons and restoring the jettison system.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 50 flight hours
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Airbus Helicopters Model EC155B1 helicopters, all serial numbers manufactured before June 30, 2015, and equipped with a pilot or co-pilot door jettisoning system in accordance with Airbus Helicopters modification POST MOD 0752C05, except helicopters on which Aircraft Maintenance Manual (AMM) task 52-11-00-712 was accomplished on both pilot and co-pilot doors since the last crew door installation.
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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