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POWER PLANT
Flight Crew Operating Manual REV 41, Jul 08, 2004
CSP 700−6
Volume 2
18−10−54
STARTING AND IGNITION (CONT'D)
Engine Run Switches (Cont’d)
· Indicate to the EEC the Engine Run switch position and perform a dual channel reset and to
close the HPSOV in the Fuel Management Unit (FMU).
GF1810_079
EEC
CH A
EEC
FMU
HPSOV
OPEN
HPSOV
CLOSED
FMU
HPSOV
CLOSED
HPSOV
OPEN
CH B
CH A
CH B
ENGINE
L RUN R
OFF OFF
The Engine Run switch controls the respective HPSOV. The switch in the ON position enables the
HPSOV open and the switch in the OFF position enables the HPSOV closed.
The Engine Run switch in the ON position gives EEC authority to open HPSOV during an
automatic ground or air start. When the switch is set to the OFF position, the HPSOV will close.
The Engine Run switch in the ON position will directly command the EEC to open the HPSOV
during a manual ground or air start. When the switch is set to the OFF position, the HPSOV will
close.
The EEC will override an Engine Run Switch ON command by closing the HPSOV only for an
automatic start abort or relight abort or in the case of an overspeed.
The transition ON to OFF initiates a reset of both lanes of the EEC of the associated engine and
will also send a signal to command the starter air valve to close.
POWER PLANT
REV 41, Jul 08, 2004 Flight Crew Operating Manual
CSP 700−6
Volume 2
18−10−55
STARTING AND IGNITION (CONT'D)
Engine Starting
AUTO Start − Ground
The normal start sequence is initiated automatically, with the ENGINE START switch selected to
AUTO, IGNITION switch selected to Normal (default), thrust levers IDLE and the engine RUN
switch to ON. The APU is the normal source of air during ground start.
GF1810_080
NOTE
The engine data quoted in this
example are approximate values.
FUEL
P P
TOTAL FUEL
38400 LBS
FUEL USED
300 LBS
14600 LBS 14600 LBS
9200 LBS
0 LBS
AUX AUX
23 °C 23 °C
32 °C 32 °C
APU
LO PRESS
BLEED/ANTIICE
32
AIR
COND
APU
HP
LP
PSI
OFF
LP
HP
OFF
R L
37
PSI
38400
14600 9200 14600
0
TOTAL FUEL (LBS)
1.00 1.00
0.0 0.8
15 15
ND
STAB
NU
NL RUDDER
LWD RWD
NR
TRIMS
7.2
N2
FF (PPH)
OIL TEMP
OIL PRESS
15.0
0
18
10
00.0
0
0
0
EPR
N1
ITT
AIL
1.65 1.65
TO
SYNC
START
IG
N
L ENG SHUTDOWN
L FUEL LO PRESS
START
P P
P
P P P P
P
ENGINE
L RUN R
OFF OFF
ENGINE
IGNITION L CRANK L CRANK
AUTO
ENG START
POWER PLANT
Flight Crew Operating Manual REV 41, Jul 08, 2004
CSP 700−6
Volume 2
18−10−56
STARTING AND IGNITION (CONT'D)
Engine Starting (Cont’d)
AUTO Start − Ground (Cont’d)
At approximately 15% N2, ignition occurs.
GF1810_081
38400
14600 9200 14600
0
TOTAL FUEL (LBS)
1.00 1.00
0.0 0.8
15 15
ND
STAB
NU
NL RUDDER
LWD RWD
NR
TRIMS
7.2
N2
FF (PPH)
OIL TEMP
OIL PRESS
15.0
0
18
10
00.0
0
0
0
EPR
N1
ITT
AIL
1.65 1.65
TO
SYNC
START
IG
N
IGN
Annunciation
L ENG SHUTDOWN
L FUEL LO PRESS
At approximately 20% N2, fuel flow active and light off will occur at approximately 25% N2.
GF1810_082
NOTE
The engine data quoted in this example are approximate values.
IGN
Annunciation
38400
14600 9200 14600
0
TOTAL FUEL (LBS)
1.00 1.00
0.0 0.8
15 15
ND
STAB
NU
NL RUDDER
LWD RWD
NR
TRIMS
7.2
N2
FF (PPH)
OIL TEMP
OIL PRESS
15.0
0
28
18
00.0
0
0
0
EPR
N1
ITT
AIL
1.65 1.65
TO
SYNC
START
IG
N
L ENG SHUTDOWN
L FUEL LO PRESS
POWER PLANT
REV 41, Jul 08, 2004 Flight Crew Operating Manual
CSP 700−6
Volume 2
18−10−57
STARTING AND IGNITION (CONT'D)
Engine Starting (Cont’d)
　
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