AD 70-13-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus SAS | BAC 1-11 200 Series | Airworthiness Directives; BRITISH AIRCRAFT CORPORATION Models BAC 1-11 200 and 400 Series Airplanes |
| aircraft | Airbus SAS | BAC 1-11 400 Series | Airworthiness Directives; BRITISH AIRCRAFT CORPORATION Models BAC 1-11 200 and 400 Series Airplanes |
Unsafe Condition
Overheating of the razor socket supply transformer P/N RD.10590 when a non-compatible electrical appliance is connected into a razor socket.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
De-activate the razor sockets by disconnecting, insulating, and tying back the socket supply cable from the circuit breaker and fitting a locking clamp to the circuit breaker knob; or modify the razor socket circuit to provide a 1/4 ampere fuse in the positive line of the rectified output of the transformer as per British Aircraft Corporation Service Bulletin 25-PM4458 or FAA-approved equivalent.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 1500 hours' time in service after the effective date of this AD
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Affected Aircraft
BRITISH AIRCRAFT CORPORATION Models BAC 1-11 200 and 400 series airplanes with razor socket supply transformer P/N RD.10590 installed.
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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