AD 2012-21-20
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus | A330-200 freighter | Airworthiness Directives; Airbus Airplanes |
Unsafe Condition
Reports of the ram air turbine (RAT) not deploying when tested, due to insufficient stroke inside one of the actuator deployment solenoids. This could result in reduced control of the airplane following a total engine flame-out or during a total loss of normal electrical power generation.
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Required Actions
Identify the supplier, part number, and serial number of the installed RAT actuator. Re-identify the actuator and RAT, or replace the RAT actuator with a serviceable unit and re-identify the RAT, if necessary.
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Compliance Time
Within 15,000 flight hours or 36 months, whichever occurs first after the effective date of this AD. For certain cases, re-identification or replacement must be completed before further flight.
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Affected Aircraft
Airbus Model A330-200 freighter series airplanes, Model A330-200 and -300 series airplanes, and Model A340-200 and -300 series airplanes, all manufacturer serial numbers (MSN), except those on which Airbus modification 201043 or 201042 has been embodied in production.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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