DOC AIRBUS | AMM A320FIGNITION SYSTEM COOLING - DESCRIPTION AND OPERATION
** ON A/C NOT FOR ALL
1. General
The ignition cooling system uses air from the fan stream to cool the ignition exciter, the lead and igniter plug. Fan air is directed to each exciter through a flexible conduit where it enters the exciter cooling box. Cooling air passes over the exciter and exits through a connector cooling jacket surrounding the ignition lead connector and enters a flexible conduit which surrounds the lead. Cooling air then flows around the lead to the igniter plug and excits through the igniter cooling jacket.
The ignition cooling system uses air from the fan stream to cool the ignition exciter, the lead and igniter plug. Fan air is directed to each exciter through a flexible conduit where it enters the exciter cooling box. Cooling air passes over the exciter and exits through a connector cooling jacket surrounding the ignition lead connector and enters a flexible conduit which surrounds the lead. Cooling air then flows around the lead to the igniter plug and excits through the igniter cooling jacket.
Ignition System Cooling