AD Amdt-39-9631
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | de Havilland | DHC-7 | Airworthiness Directives; de Havilland Model DHC-7 Series Airplanes |
Unsafe Condition
Emergency lights turning on inadvertently due to voltage spikes from other equipment and the existing emergency light switch arrangement allowing flight compartment and flight attendant's panel switches to override each other.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Modify the emergency lights circuitry to prevent voltage spike activation and ensure switches cannot override each other.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
de Havilland Model DHC-7 series airplanes
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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