AD Amdt-39-10665

final rule
Data completeness: 70%

Airworthiness Directives; McDonnell Douglas Model MD-11 Series Airplanes

AD Number
Amdt-39-10665
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. 98-NM-209-AD
FR Citation
63 FR 38464

Applicability

TypeManufacturerModelDetails
aircraft McDonnell Douglas MD-11 Airworthiness Directives; McDonnell Douglas Model MD-11 Series Airplanes

Unsafe Condition

Incorrect multiplexers installed in the flight management computers (FMC's) during production caused simultaneous failure of certain data busses during a ground test.

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

Required Actions

Revise the Airplane Flight Manual (AFM) to alert flightcrew that both FMC's must be installed and operational. Inspect to determine the serial number of the FMC's and perform follow-on corrective actions if necessary.

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

Compliance Time

Before further flight

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

Affected Aircraft

McDonnell Douglas Model MD-11 series airplanes with incorrect multiplexers installed in FMC's during production.

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

Source: Official FAA Source ↗

Retrieved: Apr 6, 2026

Rights: U.S. Government Public Domain

This site is not affiliated with or endorsed by the FAA. Always verify with official sources.

View Official Source ↗ Find More ADs for McDonnell Douglas MD-11

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