Abstract:
In order to fulfill the requirement of Diploma of Engineering Technology in Helicopter Maintenance from University of Kuala Lumpur, Malaysian Institute of Aviation Technology (UniKL MIAT), we are required to make Final Year Project (FYP) before going for On Job Training in the aviation industry. As to make this FYP come to real, we need to applied our experiences which are collected by period of three years of studying both theoretically and practically.
Airworthiness Notice No.56 requires that Passenger Transport aircraft over 5700kg MTWA must be provided with emergency evacuation guidance for passenger when all illumination more than four feet above the cabin aisle is totally obscured by smoke. System is designed to indicate passengers the direction to the emergency exits in the event the cabin is filled with smoke.
This system is mainly to assist passengers, cabin crew and flight crew to evacuate under emergency situation effectively as fast as possible. There are 4 main types of lighting exit system which is exit marking signs, general cabin illumination, floor escape path lighting and exterior emergency lighting.
Emergency lighting is powered by nickel cadmium (Ni-Cad) battery packs. Batteries are provided with charging, monitoring and voltage regulator circuits. Lights can be turned on manually or set to come on automatically in the event of failure of the primary lighting power. The system is controlled by three position guarded switch mounted usually on the pilot’s overhead panel. Switch has an ‘ON’ ‘OFF’ and a guarded ‘ARMED’ position, when not in the armed position an amber ‘UNARMED’ caution light will illuminate. Switch is normally in the ‘ARMED’ position when passengers are on board. When normal aircraft power be lost, the emergency lights will illuminate automatically.
L.E.D Strip Light is used in this project to restored the floor lighting exit of the Boeing 727 similarly to original system. We used L.E.D Strip Light as an alternative way to replace the actual floor lighting exit system which recently use a photoluminescent strip because of it is difficult to get in the market.
