AD 2010-10-25
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus | A330-200 and -300 | Airworthiness Directives; Airbus Model A330-200 and -300 Series Airplanes, and Model A340-300 Series Airplanes |
| aircraft | Aviat | Various | Airworthiness Directives; Airbus Model A330-200 and -300 Series Airplanes, and Model A340-300 Series Airplanes |
Unsafe Condition
In the door 2 area, the hat-racks are supplied with a basic wire harness which includes 'Oxygen Masks' activation. In case of a monument installation, the respective non-used hat-rack connections between monument and outer skin are put on stow. The distance between the stowed wire harness and the monument could be too small, leading to a short circuit of wires dedicated to oxygen, which could result in a large number of passenger oxygen masks not being supplied with oxygen during an emergency.
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Required Actions
Modify the hat rack connectors on stow and reroute the associated wire harness in case of monument installed in door 2 area. Refer to Airbus Mandatory Service Bulletin A340-92-4073, Revision 02, dated October 12, 2009, or A330-92-3070, Revision 02, dated August 19, 2009, for specific instructions.
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Compliance Time
Within 24 months of the effective date for door-2 areas where a monument is installed.
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Affected Aircraft
Airbus Model A330-200 and -300 Series Airplanes, and Model A340-300 Series Airplanes with monument installations in door 2 area.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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