AD 2011-01-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus | A330-201 | Airworthiness Directives; Airbus Model A330-201, -202, -203, -223, and -243 Airplanes; Airbus Model A330-300 Series Airplanes; and Airbus Model A340-200 and -300 Series Airplanes |
| aircraft | Aviat | Various | Airworthiness Directives; Airbus Model A330-201, -202, -203, -223, and -243 Airplanes; Airbus Model A330-300 Series Airplanes; and Airbus Model A340-200 and -300 Series Airplanes |
Unsafe Condition
Failure of the auxiliary power unit (APU) bleed leak detection system could result in overheat of the fuel tank located in the horizontal stabilizer and ignition of the fuel vapors in that tank, which could result in a fuel tank explosion and consequent loss of the airplane.
Required Actions
Install flight warning computer (FWC) software standard T3 on both FWCs, in accordance with the Accomplishment Instructions of Airbus Service Bulletin A330-31-3146, including Appendix 01, Revision 01, dated May 5, 2010, for Model A330-201, -202, -203, -223, -243, -301, -302, -303, -321, -322, -323, -341, -342 and -343 airplanes. Install FWC software standard L11 on both FWCs, in accordance with the Accomplishment Instructions of Airbus Service Bulletin A340-31-4125, Revision 01, dated December 9, 2008, for Model A340-211, -212, -213, -311, -312, and -313 airplanes.
Compliance Time
Within 6 months after the effective date of this AD
Affected Aircraft
Airbus Model A330-201, -202, -203, -223, -243, -301, -302, -303, -321, -322, -323, -341, -342 and -343 airplanes, all manufacturer serial numbers except those on which Airbus modification 51790 has been embodied in production or Airbus Service Bulletin A330-31-3066, A330-31-3082, A330-31-3093, or A330-31-3105 has been embodied in service; certificated in any category. Airbus Model A340-211, -212, -213, -311, -312, and -313 airplanes, all manufacturer serial numbers; certificated in any category.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
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