![]() Due to several uncontrollable fires in Class D compartments, they were eliminated by Amendment 25-93, effective March 19, 1998. Class D – Class D cargo compartment has been eliminated from the FAA regulations due to limited effectiveness in providing fire protection Ĭlass D compartments were designed to control a fire by severely restricting the supply of available oxygen.it is NOT required to be accessible in flight and must, therefore, have a built-in fireĮxtinguishing or suppression system that is controllable from the flight deck.is similar to a Class C compartment – there are means to extinguish or suppress the fire without requiring a person to enter the compartment.is similar to a Class B compartment – Class F must be located on the main deck of the airplane.accessible and allows a crewmember to use hand fire extinguisher reach any part of the compartment to fight a fire.accessible in flight but more remote from the crewmember’s station than a Class A compartment and must, therefore, incorporate a smoke or fire detection system to give warning at the pilot or flight engineer station.Class B cargo compartments are limited to the main deck.each part of the compartment is easily accessible in flight.located so close to the station of a crewmember that the crewmember would easily discover the presence of a fire and.Class X – heavy airflow and unusual construction that making uniform distribution of the extinguishing agent very difficult.ĭON’t mixed up “ Powerplant compartments Classification” with “ Cargo compartment Classification“.Class B – heavy airflow that past aerodynamically clean obstructions.(e.g reciprocating engine’s power section) Class A – heavy airflow that past regular arrangements of similarly shaped obstructions.Fire Zone – is an area of an aircraft designed by manufacture to require fire protection and/or fire extinguishing equipment.ĥ types of Fire Zone of Powerplant compartments: ![]()
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