AD 2010-05-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aviat | Various | Airworthiness Directives; ATR-GIE Avions de Transport Régional Model ATR42 and ATR72 Airplanes |
Unsafe Condition
Significant quantities of Halon 1211 gas, determined to be outside the required specification, have been supplied and used to fill certain portable fire extinguishers installed on ATR42 and ATR72 airplanes. The contaminated nature of this gas may provide reduced fire suppression capabilities and release toxic fumes upon activation, endangering the safety of the airplane and its occupants.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect and remove from service certain batches of portable fire extinguishers manufactured by L'Hotellier with part number 863521-01 and specified serial numbers. Replace the removed extinguishers with serviceable units.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 120 days of the effective date of the AD.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
ATR-GIE Avions de Transport Régional Model ATR42 and ATR72 airplanes equipped with L'Hotellier portable fire extinguishers having part number 863521-01 and specified serial numbers.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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