AD 93-05-20

final rule
Data completeness: 70%

Airworthiness Directives; MCDONNELL DOUGLAS MD-11 Series Airplanes

AD Number
93-05-20
Status
final_rule
Effective Date
Product Category
aircraft
Docket
92-NM-169-AD
FR Citation
This information is not available.

Applicability

TypeManufacturerModelDetails
aircraft The Boeing Company MD-11 Airworthiness Directives; MCDONNELL DOUGLAS MD-11 Series Airplanes
aircraft The Boeing Company MD-11F Airworthiness Directives; MCDONNELL DOUGLAS MD-11 Series Airplanes

Unsafe Condition

Loss of a hydraulic system due to failure of the engine-driven hydraulic pump overtemperature switches.

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

Required Actions

Modify the wiring to the engine-driven hydraulic pump overtemperature switches in accordance with McDonnell Douglas MD-11 Service Bulletin 29-16. Submit requests for alternative methods of compliance or adjustments to the compliance time through an appropriate FAA Principal Maintenance Inspector.

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

Compliance Time

Within 60 days after the effective date of this AD

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Affected Aircraft

MCDONNELL DOUGLAS MD-11 series airplanes equipped with Pratt & Whitney Model PW4460 engines; serial numbers 48407 through 48410, 48443 through 48448, 48452 through 48457, 48461, 48472 through 48475, 48484, 48485, 48495, and 48496.

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

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

View Official Source ↗ Find More ADs for The Boeing Company MD-11

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