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AUTO Start − Ground (Cont’d)
At approximately 42% N2, IGN off and at approximately 45% N2 START off (SAV closed).
GF1810_083
TOTAL FUEL (LBS) 41550
1.00 1.02
0.0 19
15 450
14600 10000 14600
2350 ND
STAB
NU
NL RUDDER
LWD RWD
NR
TRIMS
7.2
N2
FF (PPH)
OIL TEMP
OIL PRESS
46.0
800
30
35
00.0
0
0
0
EPR
N1
ITT
AIL
1.65 1.65
TO
SYNC
L ENG SHUTDOWN
L FUEL LO PRESS
At Idle
GF1810_084
TOTAL FUEL (LBS) 41550
1.00 1.02
0.0 25.5
15 360
14600 10000 14600
2350 ND
STAB
NU
NL RUDDER
LWD RWD
NR
TRIMS
7.2
N2
FF (PPH)
OIL TEMP
OIL PRESS
63.6
680
45
71
00.0
0
0
0
EPR
N1
ITT
AIL
1.65 1.65
TO
SYNC
L ENG SHUTDOWN
L FUEL LO PRESS
BLEED/ANTIICE
42 42
AIR
COND
APU
HP
LP
PSI
L
LP
HP
R
PSI
POWER PLANT
Flight Crew Operating Manual REV 41, Jul 08, 2004
CSP 700−6
Volume 2
18−10−58
STARTING AND IGNITION (CONT'D)
Engine Starting (Cont’d)
AUTO Start − Ground (Cont’d)
During an automatic start the EEC will perform all checks for starting anomalies. If a fault is
detected, (hot starts, hung starts, etc.) the EEC will abort the start. The crew can stop the start
sequence anytime, by selecting the ENGINE RUN switch to OFF.
AUTO Start − Air
The EEC will determine if an “ATS ENVELOPE” (£ 249 knots) or a “WINDMILL ENVELOPE”
(³ 250 knots) will be performed. The type of start will be displayed on EICAS.
GF1810_085
ATS ENVELOPE WINDMILL ENVELOPE
or
The air start sequence is initiated, when the ENG RUN switch is selected to ON.
GF1810_086
NOTE
The type of start, ATS or WINDMILL, is latched at the moment that the ENG RUN switch is
selected to ON. The EEC will continue to attempt that type of start, regardless of subsequent
changes in airspeed or configuration.
ENGINE
L RUN R
OFF OFF
ENGINE
IGNITION L CRANK L CRANK
AUTO
ENG START
If ATS ENVELOPE (starter assisted air start) has been selected, the EEC will select the SAV
open, activate the starter motor, if N2 is below starter reengagement
speed (up to 42 % N2).
If WINDMILL ENVELOPE has been selected, the EEC will not select the SAV open.
The EEC will activate ignition immediately and open the HPSOV if N2 ³ 8%. At approximately
45% N2, IGN will deactivate.
During an automatic start the EEC will perform all checks for starting anomalies. If a fault is
detected, the EEC will abort the start. (EEC will not abort an airborne relight, for hot starts).
The crew can stop the start sequence anytime, by selecting the ENGINE RUN switch to OFF.
POWER PLANT
REV 41, Jul 08, 2004 Flight Crew Operating Manual
CSP 700−6
Volume 2
18−10−59
STARTING AND IGNITION (CONT'D)
Engine Starting (Cont’d)
Manual Start − Ground
The manual ground start sequence is as follows:
· Crew selects IGNITION switch ON.
GF1810_087
· Crew selects the START SELECT switch to CRANK for the appropriate engine.
GF1810_088
NOTE
The engine data quoted in this
example are approximate values.
1.00
0.4
15
N2
FF (PPH)
OIL TEMP
OIL PRESS
10.0
0
21
10
EPR
N1
ITT
TO
SYNC
1.65
START
L CRANK L CRANK
AUTO
ENG START
· At 20% N2, crew selects the ENGINE RUN SWITCH to ON. Fuel flow and light off occur.
GF1810_089
NOTE
The EEC does not protect the engine
from overtemp or any start anomalies
during a manual start.
1.00
2.5
26
20.0
230
28
18
1.65
START
IG
N
N2
FF (PPH)
OIL TEMP
OIL PRESS
EPR
N1
ITT
TO
SYNC
ENGINE
L RUN R
OFF OFF
· At approximately 42% N2, IGN off and at approximately 45% N2 START off (SAV closed).
POWER PLANT
Flight Crew Operating Manual REV 41, Jul 08, 2004
CSP 700−6
Volume 2
18−10−60
STARTING AND IGNITION (CONT'D)
Engine Starting (Cont’d)
Manual Start − Ground (Cont’d)
During manual start, the EEC will not limit ITT, the crew must abort the start in case of starting
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