Pilot's Operating Handbook
Section 4
Normal procedures
EASA Approved
Edition 1 - January 15, 2018
Rev. 2
Page 4.4.25
Engine start
2/3
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Continuing
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CAUTION
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When THROTTLE is positioned on LO-IDLE before having obtained
13 % of Ng, there is a risk of overtemperature further to an excessive
accumulation of fuel inside the combustion chamber before ignition.
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●
NOTE
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In case of starting with high residual ITT, an ITT decrease below 150°C (within
starter operation limits) may allow to stay within the allowed ITT envelope
during startup sequence.
●
When
-
Ng about 13 % and,
-
ITT below 150°C and,
-
time below 20 seconds :
12 -
THROTTLE
LO-IDLE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Abort starting procedure if :
-
No ignition 10 seconds after having positioned THROTTLE to
LO-IDLE,
-
lights on (max ITT < 870°C for more than 20 seconds,
< 1000°C for more than 5 seconds)
,
-
Ng < 30 % after 30 seconds of starter use
,
-
Ng < 50 % after 60 seconds of starter use
,
13 -
THROTTLE
CUT OFF
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
14 -
IGNITION switch
OFF or AUTO
. . . . . . . . . . . . . . . . . . . .
When ITT < 850°C :
15 -
STARTER switch
ABORT
. . . . . . . . . . . . . . . . . . .
End of procedure
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ITT
Continue
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PIM - DO NOT USE FOR FLIGHT OPERATIONS
