BOMBARDIER Challenger 601-3A CL-600-2B16 Pilot Training Manual page 205

Failure to Start
Light-off as indicated by rising ITT will nor-
mally occur within 10 seconds after moving
the thrust lever to IDLE.
A start should be aborted if light-off does not
occur 25 seconds after moving the thrust lever
to IDLE.
If starter operation continues for more than 60
seconds, the time delay relay will cause the
STOP light to illuminate. At temperatures
above 15° C (59° F) the start should be aborted
by pushing the STOP switchlight anytime up
to 55% N rpm. The thrust lever should then
2
be moved to SHUT OFF; then wait one minute
before attempting another start. At tempera-
60
40
20
0
–20
–40
0
Figure 7-18. Maximum Allowable Start Time and Time to Stabilized Idle—Seconds
7-20 CL 601-3A
TIME FROM
THROTTLE OPENING
TO LIGHT-OFF
20 40
FOR TRAINING PURPOSES ONLY
FlightSafety Canada
CL-600-2B16 PILOT TRAINING MANUAL
tures below 15° C (59° F) the start sequence
may exceed 60 seconds (Figure 7-18).
Before attempting another start, dry motor
the engine with both ignition systems off and
the affected thrust lever at SHUT OFF.
T h e a i r t u r b i n e d u t y c y c l e f o r
normal engine start is 3 consecutive
cycles with 5 minutes cooling be-
tween additional cycles.
For dry motoring, the ATS duty cycle
is 90 seconds with a 5-minute cool-
ing period between additional cy-
cles of 30-second duration.
60 80
NOTE
TOTAL TIME
TO STABILIZED
IDLE
100 120
Lt é e
Lt d .