Airworthiness Directives Issued

The following airworthiness directives were issued as a result of this event. If you would like to view one of the ADs below, select the link. Note that these links will take you to the FAA's Regulatory and Guidance Library. You will have to select Back in your browser to return to this lesson.

Engine:

No airworthiness directives were issued on the engine.

Airplane:

1. Telegraphic AD issued November 7, 1973, that applies to DC-10-10, -30, -30F series aircraft. The AD required inspection of nose cowl bolts on DC-10 wing-mounted engines. AD 73-26-04 became effective on December 19, 1973, and incorporates the requirements of the telegraphic AD.
2. AD 75-04-03 became effective on February 14, 1975, and requires improvements to the DC-10 cabin oxygen mask deployment system. Before the National Airlines accident, the FAA was working with McDonnell Douglas on improving the DC-10 cabin oxygen mask deployment system. This accident resulted in the higher prioritization of this activity and contributed to the issuance of AD 75-04-03.

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