AD 67-25-01 R1
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus SAS | BAC 1-11 200 Series | Airworthiness Directives; BRITISH AIRCRAFT Model BAC 1-11 200 and 400 Series Airplanes |
| aircraft | Airbus SAS | BAC 1-11 400 Series | Airworthiness Directives; BRITISH AIRCRAFT Model BAC 1-11 200 and 400 Series Airplanes |
Unsafe Condition
Fatigue failures of the Belleville washers installed in the main undercarriage down lock jacks could occur, leading to potential failure of the main undercarriage down lock links.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect main undercarriage down lock links in accordance with specified service bulletins, replace cracked or broken washers, and remove washers from service before specified landing limits. Adjust inspection intervals with FAA approval based on operator data.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Compliance required as indicated in the AD, with specific deadlines based on landing counts from the effective date (October 14, 1981).
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
BRITISH AIRCRAFT Model BAC 1-11 200 and 400 Series Airplanes with specific main undercarriage down lock jacks (P/N AB43A15, AB43A16, AK43A15, AK43A16, AB44-1791, or AK43-1283).
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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