AD 99-09-03

final rule
Data completeness: 70%

Airworthiness Directives; McDonnell Douglas Model MD-11 Series Airplanes

AD Number
99-09-03
Status
final_rule
Effective Date
Product Category
aircraft
Docket
99-NM-44-AD
FR Citation
(Federal Register: April 22, 1999 (Volume 64, Number 77))

Applicability

TypeManufacturerModelDetails
aircraft The Boeing Company MD-11 Airworthiness Directives; McDonnell Douglas Model MD-11 Series Airplanes
aircraft The Boeing Company MD-11F Airworthiness Directives; McDonnell Douglas Model MD-11 Series Airplanes

Unsafe Condition

Improper installation of wires routing from main wire bundles to the aft main avionics rack (MAR) and associated brackets, clamps, braces, standoffs, or clips could cause chafing of the wire/wire bundles, resulting in electrical arcing, smoke, and possible fire in the MAR.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Conduct a one-time inspection of the wiring and wire bundles of the aft MAR to detect damage, chafing, or misaligned rubber cushion inserts. Corrective actions include repairing damaged wiring, rerouting wires to prevent contact with adjacent components, installing silicone rubber coated glass cloth wrapping, and ensuring brackets/clamps are properly installed.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

Within 60 days of the effective date (May 7, 1999)

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

McDonnell Douglas Model MD-11 and MD-11F 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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