T-45A UJPT, E2-C2, ADV, & IUT Eng-24
Engine Start Procedures
1.
During start: fuel flow without a rise in EGT
and rpm within 15 seconds of setting
throttle to IDLE (wet start)
2.
IDLE: with bleed air valve opened or
closed
a.
Maximum: 400 pph
b.
Minimum: 300 pph
F.
Bleed air valve
1.
Failure to close after accelerating rpm
above 61 +/- 4% and returning throttle to
IDLE
NOTE: The bleed air valve closes at
61+/- 4% N2. The Post Start procedure
sets the power to 70% to accomplish fuel
control, HYD 2 system reset, and idle/rpm
(bleed air valve) checks simultaneously.
a.
EGT fails to decrease approximately
50 degrees C
b.
RPM remains lower than normal (fails
to increase approximately 3%)
2.
Closed during engine start cycle: if idle rpm
exceeded 57% during start, bleed valve
may have closed automatically
a.
RPM does not show increase of
approximately 3%, but stabilizes at
normal idle rpm (55 +/- 2%)
b.
EGT does not show decrease of
50 degrees C but stabilizes at normal
idle EGT
Page 24-18
(8-03) Original
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