AD 2003-20-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus | A300 B4-600 | Airworthiness Directives; Airbus Model A300 B4-600, B4-600R, and F4-600R (Collectively Called A300-600) Series Airplanes, and Airbus Model A310 Series Airplanes |
| engine | Honeywell | IRUs | Airworthiness Directives; Airbus Model A300 B4-600, B4-600R, and F4-600R (Collectively Called A300-600) Series Airplanes, and Airbus Model A310 Series Airplanes |
Unsafe Condition
Loss of positioning data and display of incorrect attitude data due to movement of the airplane on the ground before completion of the IRU alignment procedure.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace Honeywell inertial reference units (IRUs) with new or modified Honeywell IRUs. Remove the requirement to replace Litton IRUs, mode selector units (MSUs), and inertial sensor display units (ISDUs) with Honeywell equivalents. Allow the use of certain Honeywell IRUs as spare parts until the final compliance date.
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Compliance Time
Within 12 months of the effective date of this AD.
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Affected Aircraft
Airbus Model A300 B4-600, B4-600R, F4-600R (collectively called A300-600) series airplanes, and Airbus Model A310 series airplanes equipped with certain Honeywell IRU part numbers.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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