737 MAX Flight Crew Operations Manual
Engines, APU -
Controls and Indicators
MN-FLT-OH-201
7.10.7
EGT Indications
1
Exhaust Gas Temperature (EGT) Redlines
Displayed (red) –
• maximum takeoff EGT limit.
• maximum in-flight start EGT limit when the start limit redline is not
shown.
2
Exhaust Gas Temperature (EGT) Amber Bands
Displayed (amber) – lower end of band displays maximum continuous EGT limit.
3
Exhaust Gas Temperature (EGT) Start Limit Redlines
Displayed (red) –
• until the engine achieves stabilized idle (approximately 66% N2).
• for ground starts and some in-flight starts as determined by the EEC.
4
Exhaust Gas Temperature (EGT) Readouts (digital)
Displayed (white) – normal operating range (degrees C)
1B401, 1B402, 1B801 - 1B824
Displayed (amber) – maximum continuous limit exceeded; color change inhibited
for up to 5 minutes during takeoff or go-around
Displayed (red) – maximum takeoff limit or start limit exceeded
On ground, after both engines are shut down, red box indicates an exceedance has
occurred
Displayed (white-blinking) EEC senses conditions that may lead to hot start or
stall during ground starting. EEC software will automatically cut fuel for an
impending hot start or stall during ground starting.
5
Exhaust Gas Temperature (EGT) Indications
Displayed (white) – normal operating range.
1B401, 1B402, 1B801 - 1B824
Displayed (amber) – maximum continuous limit exceeded; color change inhibited
for up to 5 minutes during takeoff or go–around
EGT
663
663
1
2
3
4
5
CAPTAIN’S OR FIRST OFFICER’S
INBOARD DISPLAY UNIT
March 1, 2021
