AD 52-23-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Edison | Fire Detectors | Airworthiness Directives; EDISON FIRE DETECTORS: Applies to All Aircraft Equipped With Edison P/N 35534, Fire Detectors Installed in Junction Boxes |
Unsafe Condition
Grounding of either or both terminals of Edison P/N 35534 fire detectors due to inadequate clearance between the detector terminals and the structure or junction box cover.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Compare dimensions of P/N 35534 fire detector with junction box to ensure sufficient clearance (minimum 3/16 inch) between terminals and structure/cover. Modify or provide insulation if clearance is insufficient.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
not later than next engine change after January 1, 1953
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Affected Aircraft
All aircraft equipped with Edison P/N 35534 fire detectors installed in junction boxes.
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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