AD Amdt-39-9642

final rule
Data completeness: 70%

Airworthiness Directives; McDonnell Douglas Model DC-9-80 Series Airplanes, and Model MD-88 and MD-90 Airplanes

AD Number
Amdt-39-9642
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. 95-NM-188-AD
FR Citation
61 FR 28028

Applicability

TypeManufacturerModelDetails
aircraft McDonnell Douglas DC-9-80 Airworthiness Directives; McDonnell Douglas Model DC-9-80 Series Airplanes, and Model MD-88 and MD-90 Airplanes

Unsafe Condition

The length of the oxygen mask lanyards of the passenger service unit (PSU) were found to be too long due to improper installation during production.

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

Required Actions

Conduct a one-time measurement of the oxygen mask lanyard lengths. Modify lanyards that exceed the proper length.

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 DC-9-80 series, MD-88, and MD-90 airplanes with improperly installed oxygen mask lanyards 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 DC-9-80

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