AD 2000-07-17
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | McDonnell Douglas | MD-11 | Airworthiness Directives; McDonnell Douglas Model MD-11 Series Airplanes |
Unsafe Condition
The observer's upper main circuit breaker panel may not fully open due to a cable being too short, potentially hindering maintenance activities and causing damage to the circuit breaker panel and wiring, which could result in electrical arcing and consequent smoke and fire in the flight compartment.
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Required Actions
Within 6 months after the effective date, perform a general visual inspection to verify the circuit breaker panel fully opens. If the panel fully opens, perform a detailed visual inspection of the wires between circuit breakers B1-213 and B1-300 to terminal strip S3-602 for chafing damage. If the panel does not fully open, perform a detailed visual inspection of the wire route to detect chafing damage and determine if the wire needs adjustment or replacement. Adjust or replace wires as necessary and repair any chafing damage found.
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Compliance Time
Within 6 months after the effective date
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Affected Aircraft
McDonnell Douglas Model MD-11 series airplanes, as listed in McDonnell Douglas Alert Service Bulletin MD11-24A130, Revision 01, dated September 20, 1999; certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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