AD Amdt-39-11809
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | McDonnell Douglas | DC-8 | Airworthiness Directives; McDonnell Douglas Model DC-8 Series Airplanes |
Unsafe Condition
Main deck cargo door systems do not provide an adequate level of safety; latching and locking mechanisms are not of adequate design to prevent structural deformation in the event of component jamming; and there is an absence of a means to prevent pressurization to an unsafe level if the main deck cargo door is not closed, latched, and locked.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the cargo door wire bundle and door latch rollers to detect damage, repair or replace damaged components, revise the Airplane Flight Manual Supplement, replace circuit breakers labeled 'pump' and 'valve', modify the mechanical and hydraulic systems of the main deck cargo door, and install a means to prevent pressurization to an unsafe level if the cargo door is not closed, latched, and locked.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 30 days after the effective date of this AD for circuit breaker replacement, within 18 months after the effective date for modifications to the hydraulic and indication systems.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
McDonnell Douglas Model DC-8 series airplanes converted from a passenger to a cargo-carrying configuration in accordance with Supplemental Type Certificate (STC) SA1802SO or SA421NW.
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
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