With the engine start switch in the GRD position, moving the engine start lever to IDLE provides ignition to which igniter during a ground start?

With the engine start switch in the GRD position, moving the engine start lever to IDLE provides ignition to which igniter during a ground start?

• A. The selected igniter for a ground start
• B. Both igniters
• C. No ignition
• D. Ignition to the fuel pump

Answer: (A)

During a ground start, the GRD position tells the system to use the ignition circuit assigned for a ground start. When you move the engine start lever to IDLE, ignition is supplied to the selected igniter for this ground start, providing a spark at the right time to ignite the fuel–air mixture as the starter turns the engine. This single, selected igniter approach helps ensure reliable ignition without unnecessarily energizing both igniters. The other options aren’t correct because there isn’t ignition to the fuel pump in this context, and there isn’t simultaneous ignition of both igniters required for a ground start.

During a ground start, the GRD position tells the system to use the ignition circuit assigned for a ground start. When you move the engine start lever to IDLE, ignition is supplied to the selected igniter for this ground start, providing a spark at the right time to ignite the fuel–air mixture as the starter turns the engine. This single, selected igniter approach helps ensure reliable ignition without unnecessarily energizing both igniters. The other options aren’t correct because there isn’t ignition to the fuel pump in this context, and there isn’t simultaneous ignition of both igniters required for a ground start.