AD 68-01-01 R1
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus SAS | BAC 1-11 200 Series | Airworthiness Directive; British Aerospace Model BAC 1-11 200 and 400 Series |
| aircraft | Airbus SAS | BAC 1-11 400 Series | Airworthiness Directive; British Aerospace Model BAC 1-11 200 and 400 Series |
Unsafe Condition
Heat damage or fire in the airframe plenum of the auxiliary power unit (APU) installation.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Visually check the fiberglass surround of the APU intake for heat discoloration and replace non-return valve with specified parts. Install placards and amend flight manual limitations. Perform modifications including installing fire-proof skin, replacing walls, modifying doors and drains, installing sealing plates and temperature sensors. Inspect and replace jet pipes as required and add new APU usage limitations to the flight manual.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 50 hours time-in-service after the effective date of this AD
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
British Aerospace Model BAC 1-11 200 and 400 Series airplanes.
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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