AD 74-12-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | DC-10-10 | Airworthiness Directives; MCDONNELL DOUGLAS DC-10-10, DC-10-10F, DC-10-30, DC-10-30F, and DC-10-40 Airplanes |
| aircraft | The Boeing Company | DC-10-10F | Airworthiness Directives; MCDONNELL DOUGLAS DC-10-10, DC-10-10F, DC-10-30, DC-10-30F, and DC-10-40 Airplanes |
| aircraft | The Boeing Company | DC-10-30 | Airworthiness Directives; MCDONNELL DOUGLAS DC-10-10, DC-10-10F, DC-10-30, DC-10-30F, and DC-10-40 Airplanes |
| aircraft | The Boeing Company | DC-10-30F (KC-10A, KDC-10) | Airworthiness Directives; MCDONNELL DOUGLAS DC-10-10, DC-10-10F, DC-10-30, DC-10-30F, and DC-10-40 Airplanes |
| aircraft | The Boeing Company | DC-10-40 | Airworthiness Directives; MCDONNELL DOUGLAS DC-10-10, DC-10-10F, DC-10-30, DC-10-30F, and DC-10-40 Airplanes |
Unsafe Condition
In-flight depressurization could occur due to the opening of a lower cargo door.
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Required Actions
Accomplish specified McDonnell Douglas Service Bulletins 52-98, 52-99, 52-102, 52-106, and 53-69 (where applicable), or equivalent FAA-approved revisions. These include modifying vent doors, replacing lock mechanism viewing windows, revising lower cargo door markings, updating electrical wiring for cargo door latch actuators, and adding view ports to wing-to-fuselage fillet panels on DC-10-30, -30F, and -40 models.
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Compliance Time
on or before December 1, 1974
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Affected Aircraft
McDonnell Douglas DC-10-10, DC-10-10F, DC-10-30, DC-10-30F (KC-10A, KDC-10), and DC-10-40 airplanes certificated in all categories.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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