In this video we will take look on important equipment for start of the engine and prevention of flame-out. we are talking about ignition system. The ignition system consists of 2 independent systems : 2 high energy ignition exciters for which the energization is controlled by the ECU, 2 spark igniters, and 2 coaxial shielded ignition leads.
The purpose of the system is :
- to produce an electrical spark to ignite the fuel air/mixture in the engine combustion chamber during the starting cycle on ground and in flight.
- to provide continuous ignition (manual or automatic selection) during takeoff, landing and operation in adverse weather conditions or EIU failed.
The ECU selects one ignition exciter for two successive automatic starts then selects the other ignition exciter. This is to avoid dormant failure and premature wear of sparks igniters.
And since you know how this system works, let me show you how to replace one of the lead
*********video is just for information purposes always stick to the latest maintenance manual*********
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Difference between spark plug and ignitor plug and how to replace it
https://youtu.be/ZAsx-bk3QaY
———-Video content———————
00:00 - preparation and explanation
00:16 - opening of fan cowls
00:57 - opening of C-duct
02:41 - closer look lead
04:14 - removal of ignition lead
11:47 - preparation of new lead
12:47 - installation of the lead
19:41 - Test
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