Boeing 737 NG Systems Review
Forward Overhead Panel  700/800/900
Display Selector
Engine Start Panel
ENGINE START Switches

GRD –


  • Opens start valve.

  • Closes engine bleed valve.

  • For ground starts, arms the selected igniter(s) to provide
    ignition when engine start lever is moved to IDLE.

  • For inflight starts, arms both igniters to provide ignition
    when engine star tlever is moved to IDLE.

Option - Without automatic ignition.

  • Releases to OFF at start valve cutout.


Option - With automatic ignition.
  • Releases to AUTO at start valve cutout.
Auto Ignition Option