AD 90-02-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | ATR - GIE Avions de Transport R gional | ATR42-200 | Airworthiness Directives; AEROSPATIALE Model ATR42 Series Airplanes |
| aircraft | ATR - GIE Avions de Transport R gional | ATR42-300 | Airworthiness Directives; AEROSPATIALE Model ATR42 Series Airplanes |
| aircraft | ATR - GIE Avions de Transport R gional | ATR42-320 | Airworthiness Directives; AEROSPATIALE Model ATR42 Series Airplanes |
| aircraft | ATR - GIE Avions de Transport R gional | ATR42-500 | Airworthiness Directives; AEROSPATIALE Model ATR42 Series Airplanes |
Unsafe Condition
Improper installation of fire protection system plumbing and/or wiring in the right engine fire extinguishing system could lead to inadequate fire suppression capability.
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Required Actions
Inspect the right engine fire extinguishing system wiring and plumbing per Aerospatiale All Operators Information Message DS/E 20/89. Correct any improperly installed pipes or electrical connectors before further flight. Submit alternate compliance requests through an FAA PMI to the Manager, Standardization Branch.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 30 days after January 23, 1990, and immediately after any maintenance that could cause mis-wiring or mis-plumbing.
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Affected Aircraft
AEROSPATIALE Model ATR42 series airplanes, Serial Numbers 003 through 100.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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