T-45C TS, ADV & IUT ENG-26
Engine Start Procedures
GTS advisory light illuminates
NOTE: Protection circuits within the starting
system will shut down the GTS if idle speed is
not achieved within 30 seconds after the GTS
button is pressed.
2.
Engine switch - START
Sg 2, fr 6, ov 2
Engine Start Sequence
a.
Spring-loaded detent initiates engine starting
sequence
b.
GTS accelerates to 100%, supplying air-to-air
turbine starter
READY advisory light illuminates within
15 seconds
Sg 2, fr 7, ov 3
c.
Air turbine starter (ATS) rotates N2 shaft
d.
READY advisory light: Indicates that N1 shaft is
rotating in correct direction with shaft speed
>100 rpm and that starting sequence may
continue
CAUTION: If the READY advisory light does
not illuminate within 15 seconds, discontinue
start attempt, otherwise mechanical damage
may result from an overheat condition.
e.
services power from ignition switch to engine
f.
RPM should rise rapidly to approximately 10%
3.
Throttle - IDLE WHEN RPM BETWEEN 15%-20%
Sg 2, fr 8, ov 4
a.
Opens throttle shutoff valve, allowing SIFCU
and FCU to begin metering fuel to engine spray
nozzles
b.
You should see an indication of fuel flow
(9-98) Change 3
Page 26-14
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