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.
The FAA yesterday issued a Safety Alert for Operators (SAFO) regarding procedures for fighting fires caused by lithium batteries in portable electronic devices.
Hawker Beechcraft 99, Moline, Ill., Feb. 18, 2008–No one was injured during the in-flight fire, which the Safety Board attributed to the arcing of the resistor and silicone-controlled rectifier in the flap control circuit. The pilot of the Suburban Air Freight cargo flight “smelled electrical smoke and saw flames behind the power quadrant,” while descending to land at Quad City International Airport (MLI).
The manufacturer of portable halon fire extinguishers targeted for mandatory replacement said the units involved “do not represent a safety problem,” even though they are not in compliance with technical requirements. In a proposed AD, the FAA is calling for the removal of some 39,000 of the extinguishers due to improper crimping of the units’ siphon tubes.
Hawker Beechcraft Beech 99, Moline, Ill. Feb. 18, 2008–The Suburban Air Freight cargo airplane had an in-flight fire in the wiring behind the instrument panel, causing minor damage. The pilot, who was not injured, put out the blaze with a fire extinguisher.
Hawker Beechcraft Beech 99, Moline, Ill. Feb. 18, 2008–The Suburban Air Freight cargo airplane had an in-flight fire in the wiring behind the instrument panel, causing minor damage. The pilot put out the blaze with a fire extinguisher and was not injured.
Nearly 40,000 Kidde Aerospace halon fire extinguishers will have to be removed from service, under a proposed airworthiness directive. The FAA said the discharge time of the handheld units (part number 898052 and serial number of W-389653 or lower in units built between 1995 and 2002) exceeds the maximum allowable discharge time due to an allegedly crimped siphon tube.
The FAA issued a special condition fire-extinguishing requirement for the Adam Aircraft A700. Although fire-extinguishing systems are required by Part 23, that regulation “did not envision the type of configuration of the Model A700,” in which the two Williams FJ33 turbofan engines are not within the pilots’ field of view.
A single report of a mis-wired APU fire-extinguishing bottle on a Citation X (Model 750) has prompted a proposed AD to require placing identification sleeves on the positive and negative terminals of APU and main engine fire-extinguishing bottle wiring and reconnecting the wires to the correct terminal studs on Citation 500s, 550s, S550s, 560s, 560XLs and 750s.
Kidde portable fire extinguishers that have been determined to be faulty must be replaced in some 39,000 aircraft, according to a recent AD. The manufacturer said the units involved “do not represent a safety problem,” even though they do not comply with technical requirements. The affected extinguishers (P/N 898052 with S/Ns from V-432001 to W-389653 and built between 1995 and 2002) exceed the maximum allowable discharge time of 10 seconds.