My question is are there any operators out there that put the fuel control switches on prior to pulling the start switches?
Boeing-approved autostart sequence on several
American operators of the 744:
Pull Engine Start Switch
Position Fuel Control to Run
Monitor EGT rise
Monitor N1 and Oil Pressure
Manual Start Seq:
Autostart Switch OFF
Pull Engine Start Switch
Observe N2 rise
Position Fuel Control to Run at Fuel On Msg
Monitor EGT rise
Monitor N1 and Oil Pressure
With both sequences we have FADEC assistance
either with auto fuel control or with the Fuel On
message - enough of a reminder perhaps not to
throw the Fuel control mindlessly into Run.
Just for fun, manual start procedures on a moldy-oldie:
(FE's job almost the same)
Boeing-approved start sequence: 742
Push GND Start Switch
Check Start VALVE OPEN Light on
Observe N2 rotation within 10 seconds
FE Calls N2 rotation, 20% and 45 % N2
FE monitors:
duct press and bleed valve closed light
Hyd press and Oil press increase
CSD low press light out
At 20% N2 with N1 rotation, EGT below 100C
Start Lever to Idle*
Observe FF indicator
*Below 0C or cold-soaked engine Start lever to
Rich at 20% (or max motoring at or above 15%)
FE monitors:
Fuel valve opens
Calls initial stable FF
At 45% N2 check GND Start switch trips off and start Valve Open light goes out. If not automatically tripped, press Off
After cutout FE monitors:
Duct press rises to Norm
Bleed valve closes
HP valve opens
At stable idle FE monitors:
All engine instruments for norm
Low oil press and filter bypass lights out
Pilot starting keeps hand on Start lever until EGT stabilzes
All 3 crew must monitor N2, EGT
Now on to 2 and 4 with 3 started during taxi
