T-45C TS, ADV & IUT ENG-27/ENG-28
Engineering Review
(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, 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
(9-98) Original
Page 27-147
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