B737 Engine Panel

REVERSER COMMAND Light

• Illuminated (amber) – The reverse thrust lever is not in the down position in flight.

REVERSER AIR/GRD Light

• Illuminated (amber) – The air/ground thrust reverser logic has failed.

REVERSER LIMITED Lights

• Illuminated (amber) –
  • On the ground:
    • A fault has occurred in the thrust reverser system.
  • In-flight:
    • A fault in the thrust reverser system limits reverse thrust.
    • Thrust reverser will not deploy, or reverse thrust will be limited to idle.

ENGINE CONTROL Lights

• Illuminated (amber) – The engine control system is not dispatchable due to faults in the system.
• Light operates when:
  • Engine is operating, and
  • Airplane is on the ground, and:
    • Below 80 knots prior to takeoff, or
    • Approximately 30 seconds after touchdown.

Electronic Engine Control (EEC) Switches

• ON – In view (white)
  • Indicates normal control mode is selected.
  • Engine ratings calculated by EEC from sensed atmospheric conditions and bleed air demand.
  • When ON is not in view, the EEC has been manually selected to the alternate mode.
• ALTN – In view (amber)
  • Indicates EEC has automatically switched to alternate control mode or has been selected manually.
  • EEC provides rated thrust or higher.
• Both ON and ALTN may be in view if EEC has automatically switched to soft alternate mode.
• EGT limits must be observed in both normal and alternate control modes.