how do you fill up 11 tons of fuel on a B737-300?
Join Date: Feb 2006
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The only limitation as such is a minimum of 760kg in each main (wing) tank for ground operations, and cooling of the electric hydraulic pumps.
11000 kg would be across wings and centre tank. From memory the wings hold 9000kg (4500 each). Total fuel is about 15880kg.
Haven't flown 300/400 for about 3 years so not sure what is current regards centre tank fuel pump limitations.
Re Standby Hyd pump, 300 normally powered by Gen Bus #1 and will transfer to Gen Bus 2. NG normal power is Transfer Bus 2
Hope this helps
11000 kg would be across wings and centre tank. From memory the wings hold 9000kg (4500 each). Total fuel is about 15880kg.
Haven't flown 300/400 for about 3 years so not sure what is current regards centre tank fuel pump limitations.
Re Standby Hyd pump, 300 normally powered by Gen Bus #1 and will transfer to Gen Bus 2. NG normal power is Transfer Bus 2
Hope this helps
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2- standby pump of stanby hydraulic system is DC or AC activated?
Join Date: Nov 2004
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The usual 2 pennies....
Limitations from AFM:
- If more than 453 kg are in the centre tank, wings must be full;
Limitations from Operations Manual Bulletin, Jul 3, 2001:
- For ground operations, center tank fuel pump switches must NOT be positioned to ON unless the center tank fuel quantity exceeds 453 kg, except when defueling or transferring fuel.
- Center tank fuel pump switches must be positioned OFF when both low pressure lights illuminate.
- Center tank fuel pumps must NOT be ON unless personnel are available in the flight deck to monitor low pressure lights.
Within our airline:
- Takeoff with centre tank pumps on, with less than 1000 kg is NOT recommended, to avoid "low pressure" lights and master caution blinking during the T/O roll and initial climb.
So... 11000.. Wings full and some 2000 kg in the centre tank should get the job done!
And yep, Standby HYD pump is powered by GEN 1 (with alternate provision from GEN 2), so AC powered.
Cheers.
Limitations from AFM:
- If more than 453 kg are in the centre tank, wings must be full;
Limitations from Operations Manual Bulletin, Jul 3, 2001:
- For ground operations, center tank fuel pump switches must NOT be positioned to ON unless the center tank fuel quantity exceeds 453 kg, except when defueling or transferring fuel.
- Center tank fuel pump switches must be positioned OFF when both low pressure lights illuminate.
- Center tank fuel pumps must NOT be ON unless personnel are available in the flight deck to monitor low pressure lights.
Within our airline:
- Takeoff with centre tank pumps on, with less than 1000 kg is NOT recommended, to avoid "low pressure" lights and master caution blinking during the T/O roll and initial climb.
So... 11000.. Wings full and some 2000 kg in the centre tank should get the job done!
And yep, Standby HYD pump is powered by GEN 1 (with alternate provision from GEN 2), so AC powered.
Cheers.
Join Date: Jan 2002
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Gufo....my only querie with your quotation refers to the part relating to the FCOM bulletin, second para, my best current info is that EACH center section pump is to be secured when it's respective LOW PRESSURE light illuminates.
Otherwise I'm OK with it!
Cheers, FD
Otherwise I'm OK with it!
Cheers, FD
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Originally Posted by Flight Detent
EACH center section pump is to be secured when it's respective LOW PRESSURE light illuminates.
I understood the same, at least, even though the text by Boeing could have been clearer about that..
Ciao
