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EMERGENCY SURVIVAL EQUIPMENT
FUNCTION

Aviation Structural Mechanic E2 - How airplanes are built and how to maintain them
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Figure 6-18.—Survival kit and parachute removed. emergency code card, water storage bag, a 50-foot nylon cord, and shark repellent. Operation As the seat moves up the guide rails during seat ejection, the aircraft-attached emergency oxygen lanyard is pulled automatically to actuate a supply of emergency oxygen. In the event of high-altitude ejection, the emergency oxygen provides protection against blackout while the crew member is descending to a safe altitude. By pulling the manual kit-release handle on the right side of the kit, the crew member may deploy the kit during parachute descent. Upon deployment of the kit, the top and bottom halves separate; both halves are still connected to the crew member by a retaining lanyard. The survival kit gear remains with the bottom half of the container (stowed in a zippered bag), while the life raft separates from the container. A self-contained pneumatic bottle automatically inflates the life raft, which remains attached to the crew member by means of the retaining lanyard. Parachute deployment occurs following the crew member/seat separation phase of normal seat ejection. If the crew member is above a preset pressure altitude of 14,000 (± 500) feet, an aneroid in the parachute barometric actuator delays parachute deployment until the crew member has descended to the correct pressure altitude. The parachute actuator delay cartridge then fires, causing parachute deployment. The parachute also can be deployed manually by pulling a conventional D-ring rip cord. CARTRIDGES AND CARTRIDGE- ACTUATED DEVICES (CADs) The types of explosive devices incorporated in egress systems are varied. The AME working with these devices must know how they function, their characteristics, how to identify them, their 6-23







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