AD 90-23-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | ATR - GIE Avions de Transport R gional | ATR42-300 | Airworthiness Directives; AEROSPATIALE Model ATR42-300 and -320 Series Airplanes |
| aircraft | ATR - GIE Avions de Transport R gional | ATR42-320 | Airworthiness Directives; AEROSPATIALE Model ATR42-300 and -320 Series Airplanes |
Unsafe Condition
Failure of the emergency lighting system to operate during an emergency situation due to inadequate control wiring in Zones 212, 210, and 214.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Modify the emergency lighting control wiring in Zones 212, 210, and 214 per Aerospatiale Service Bulletin ATR42-33-0017, Revision 1. Perform an operational test of the emergency lighting system immediately after installation as specified in the service bulletin.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 10 months after the effective date of this AD
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
AEROSPATIALE Model ATR42-300 and -320 series airplanes, Serial Numbers 003 through 150
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
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.