AD 2005-07-25
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus | A300 B2 and B4 | Airworthiness Directives; Airbus Model A300 B2 and B4 Series Airplanes; Model A300 B4-600, A300 B4-600R, A300 C4-605R Variant F, and A300 F4-600R (Collectively Called A300-600) Series Airplanes; and Model A310 Series Airplanes |
Unsafe Condition
Failure of multiple transformer rectifier units (TRUs) due to certain diodes installed in the TRUs, which are the main factor contributing to continuing TRU failures. This could result in loss of thrust reversers, autothrottle, flaps, and various systems (wing/cockpit window anti-ice, trim tank pumps, and windshield wipers) on the airplane, or display of incorrect information to the flightcrew.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace the transformer rectifier units (TRUs) installed according to the existing AD with different TRUs that are improved. The new TRUs must have part number F11QY3714.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 12 months of the effective date of the AD (May 16, 2005).
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Airbus Model A300 B2 and B4 series airplanes; Model A300 B4-600, A300 B4-600R, A300 C4-605R Variant F, and A300 F4-600R (collectively called A300-600) series airplanes; and Model A310 series airplanes.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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