737 Flight Crew Operations Manual
Engines, APU -
Over/Under – Displays
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7.11.6 D6-27370-866-EGP
EGT Indications
1 Exhaust Gas Temperature (EGT) Redlines
Displayed (red) – maximum takeoff EGT limit.
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 Lines
Displayed (red) – until the engine achieves stabilized idle (approximately 59%
N2).
4 Exhaust Gas Temperature (EGT) Readouts (digital)
Displayed (white) – normal operating range (degrees C)
Displayed (amber) – maximum continuous limit exceeded
• Color change inhibited for up to 5 minutes during takeoff or go-around
(normal operation)
• color change inhibited for up to 10 minutes during takeoff or go-around
(when an engine out condition occurs within the first 5 minutes of the
inhibit)
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. Current versions of 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.
June 5, 2009
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