The FAA has issued a request for comments on a final rule for an Airworthiness Directive (AD) for SICLI Halon 1211 portable fire extinguishers installed on various models of airplanes and rotorcraft, including some models built by Bombardier, Cessna, Dassault, Embraer and Eurocopter.
The FAA is seeking comments on an Airworthiness Directive aimed at contaminated Halon 1211 used in some handheld cabin fire extinguishers. According to the FAA, “The contaminated nature of this gas, when used against a fire, may provide reduced fire suppression.
The FAA is issuing an update of advisory circular AC 20-42D: Hand Fire Extinguishers for Use in Aircraft. It provides guidance for firefighting effectiveness, selection, location and mounting of hand fire extinguishers. The circular establishes halocarbons hydrochlorofluorocarbon (HCFC) Blend B, hydrofluorocarbon (HFC)-227ea and HFC-236fa as FAA-approved replacement agents to Halon 1211.