AD 75-13-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | DC-10-10 | Airworthiness Directives; MCDONNELL DOUGLAS DC-10-10, -10F, -30, -30F, and -40 Series Airplanes |
| aircraft | The Boeing Company | DC-10-10F | Airworthiness Directives; MCDONNELL DOUGLAS DC-10-10, -10F, -30, -30F, and -40 Series Airplanes |
| aircraft | The Boeing Company | DC-10-30 | Airworthiness Directives; MCDONNELL DOUGLAS DC-10-10, -10F, -30, -30F, and -40 Series Airplanes |
| aircraft | The Boeing Company | DC-10-30F (KC-10A, KDC-10) | Airworthiness Directives; MCDONNELL DOUGLAS DC-10-10, -10F, -30, -30F, and -40 Series Airplanes |
| aircraft | The Boeing Company | DC-10-40 | Airworthiness Directives; MCDONNELL DOUGLAS DC-10-10, -10F, -30, -30F, and -40 Series Airplanes |
Unsafe Condition
Failure of the passenger door downlock to prevent door opening due to improper rigging, worn downlock pawl roller, or non-compliant up/down lock cam.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Functionally operate all passenger doors (except Type I on fuselage 1-92) to ensure downlock engagement. If downlock fails, rig components (load feel cam, up/down lock cam, downlock pawl roller), replace worn roller, or replace up/down lock cam with investment cast or reinspected machined cam. Verify normal operation after corrections.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the next 48 hours (elapsed time) after June 23, 1975 for fuselage numbers 1 through 104, and within 120 hours (elapsed time) for fuselage numbers 105 and subsequent.
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Affected Aircraft
Douglas Model DC-10-10, -10F, -30, -30F (KC-10A, KDC-10), and -40 series airplanes, all serial numbers.
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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