737 MAX Flight Crew Operations Manual
Engines, APU -
Controls and Indicators
7.10.20
MN-FLT-OH-201
1
REVERSER COMMAND Light
Illuminated (amber) – the reverse thrust lever is not in the down
position in flight.
2
REVERSER AIR/GRD Light
Illuminated (amber) – the air/ground thrust reverser logic is failed.
3
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.
4
ENGINE CONTROL Lights
Illuminated (amber) – engine control system is not dispatchable due to faults in
system.
Light operates when:
• engine is operating and,
• airplane on ground and:
•below 80 kts prior to takeoff or,
•approximately 30 seconds after touchdown.
5
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)
• indicated EEC has automatically switched to alternate control mode or it
has been selected manually
• EEC provides rated thrust or higher.
Note:
Both ON and ALTN may be in view if EEC has automatically switched to
soft alternate mode.
Note:
EGT limits must be observed in both normal and alternate control modes.
March 1, 2021
