AD 74-08-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | DC-10-10 | Airworthiness Directives; MCDONNELL DOUGLAS DC-10 Series Airplanes |
| aircraft | The Boeing Company | DC-10-10F | Airworthiness Directives; MCDONNELL DOUGLAS DC-10 Series Airplanes |
| aircraft | The Boeing Company | DC-10-15 | Airworthiness Directives; MCDONNELL DOUGLAS DC-10 Series Airplanes |
| aircraft | The Boeing Company | DC-10-30 | Airworthiness Directives; MCDONNELL DOUGLAS DC-10 Series Airplanes |
| aircraft | The Boeing Company | DC-10-30F (KC-10A, KDC-10) | Airworthiness Directives; MCDONNELL DOUGLAS DC-10 Series Airplanes |
| aircraft | The Boeing Company | DC-10-40 | Airworthiness Directives; MCDONNELL DOUGLAS DC-10 Series Airplanes |
| aircraft | The Boeing Company | DC-10-40F | Airworthiness Directives; MCDONNELL DOUGLAS DC-10 Series Airplanes |
Unsafe Condition
Possible in-flight depressurization resulting from opening of an improperly secured cargo door.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Install inspection ports and placards in all cargo doors and perform functional checks per Service Bulletin A52-35; modify cargo door latch actuator wiring per Service Bulletin 52-27; replace strike plate, adjust switches, and install support and plate on cargo doors per Service Bulletin 52-37 (except aircraft modified per SB 52-49). Perform pre-flight door checks including securing cargo restraint curtains, checking for foreign matter, verifying locking mechanisms, and ensuring warning lights are extinguished. Flight crew must be indoctrinated per approved training programs. Complete wiring changes per SB 52-43 and 52-44 within 30 days; rework latching mechanisms per SB 52-49 by July 1, 1974; install limit switch covers per SB 52-54 by July 1, 1974; and modify warning systems per SB 52-109 within 6000 hours time-in-service. Operators may seek equivalent approved modifications.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Prior to further flight, within 30 days after effective date (December 1, 1975), on or before July 1, 1974, within 6000 hours' time in service after Amendment 39-2112 effective date (April 4, 1975).
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Affected Aircraft
McDonnell-Douglas DC-10 series airplanes including models DC-10-10, DC-10-10F, DC-10-15, DC-10-30, DC-10-30F (KC-10A, KDC-10), DC-10-40, DC-10-40F.
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
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