Saturday, February 1, 2020

Aircraft Crash Analysis & Design Essay Example | Topics and Well Written Essays - 500 words

Aircraft Crash Analysis & Design - Essay Example All of the 297 passengers and 12 crew members evacuated the aircraft before the fire reached the escape doors. All of the passengers and crew members survived with only 12 were seriously injured. People called it a miracle and the role played by the highly trained crew members in an emergency situation was appreciated. The passenger cabin had eight emergency exit doors. Six of the doors are used in Type A emergency and the other two doors are used in Type l emergency. All of the doors were similar in operation. They had a design to be opened either from interior or the exterior. According to the operating manual of Airbus cabin crew the instruction states that opening the doors from interior in normal operations, the door control handle must be completely up. All of the doors were equipped with door assist system which had an emergency operation cylinder and a damper. Damper helps in limiting the travel of the door in normal operations especially when the conditions are windy. But in an emergency situation the damper acts as an actuator in order to open the door automatically. The damper is operated by compressed nitrogen gas which is stored in specially designed cylinders which have pressure gauge. Slide arm lever controls the release of nitrogen by and actuating device. When the arm lever is at armed state as normally it is during landing as a result the door assist opens the door automatically. Each emergency door also has a prismatic lens. The plane had 8 evacuation escape devices to help in fast occupant way out in state of an emergency. It had 2 single lane slides at emergency doors R3 and L3 and six double lane rafts at emergency doors R1, R2, R4, L1 and L2. The deployment and inflation of the rafts were automatically started when the emergency doors are opened. Normally the deployment and inflation time of rafts is 16 seconds but on Airbus A340 it is 8 seconds. There is no sign that the international

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