AD Amdt-39-14302
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | McDonnell Douglas | Various | Airworthiness Directives; Various Transport Category Airplanes Manufactured by McDonnell Douglas |
Unsafe Condition
Reports indicate that fire extinguishers for the engine and auxiliary power unit (APU) failed to discharge when commanded, which could result in the inability to put out a fire in an engine or APU.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Perform a one-time test of the fire extinguishers for the engine and APU, as applicable, to determine the capability of the Firex electrical circuits to fire discharge cartridges. Take troubleshooting actions if necessary.
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Compliance Time
Within the compliance times specified in the AD, unless the actions have already been done.
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Affected Aircraft
Various McDonnell Douglas transport category airplanes, including models DC-8, DC-9, DC-10, MD-11, and MD-90, as listed in Table 1 of the AD. Excludes McDonnell Douglas Model MD-10-10F and MD-10-30F airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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