AD 2011-18-20
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus | A330-200 and -300 | Airworthiness Directives; Airbus Model A330-200 and -300 Series Airplanes, and Model A340-200 and -300 Series Airplanes |
| aircraft | Aviat | Various | Airworthiness Directives; Airbus Model A330-200 and -300 Series Airplanes, and Model A340-200 and -300 Series Airplanes |
Unsafe Condition
The distance between wire harnesses 5376VB/2M and 5377VB/1M above doors 4 and the air conditioning duct is too small, potentially causing collision with the flexible air conditioning hose. This could lead to short circuit of oxygen-dedicated wires, resulting in passenger oxygen masks not being supplied with oxygen during emergencies.
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Required Actions
Within 24 months after the effective date, modify the wire harness 5376VB/2M and 5377VB/1M attachments above doors 4, in accordance with Airbus Mandatory Service Bulletin A330-92-30.
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Compliance Time
Within 24 months after the effective date of this AD
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Affected Aircraft
Airbus Model A330-200 and -300 Series airplanes (types A330-201, -202, -203, -223, -243, -301, -302, -303, -321, -322, -323, -341, -342, -343) and Model A340-200 and -300 Series airplanes (types A340-211, -212, -213, -311, -312, -313), all serial numbers, except those with modifications 57349 and 58924, or 201642, or 57562.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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