AD 2015-26-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus | A330-200 | Airworthiness Directives; Airbus Airplanes |
Unsafe Condition
The impeller drive (hex) shaft had a reduced length of engagement with the pump drive shaft, causing the impeller drive shaft to disengage from the pump and disconnect the impeller. This was due to internal hex dimensions on the pump impeller shaft, which had been changed in a manufacturing drawing.
Required Actions
For affected pumps, replacement of the balance weight screw, modification of the actuator coil spring, modification of the actuator, an inspection of the anti-stall valve for correct installation in the RAT pump housing and re-installation if necessary. For affected pumps, corrective actions include replacement of the RAT hydraulic pump, and re-identification of the part number of the RAT module. For affected modules, replacement or re-identification of the RAT module.
Compliance Time
Before further flight
Affected Aircraft
All Airbus Model A330-200, A330-200 Freighter, and A330-300 series airplanes; and Airbus Model A340-200, A340-300, A340-500, and A340-600 series airplanes.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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