AD/B747/283 - Fuel Tank Limitations
Model 747-100, -200B, -200F, -200C, -100Model 747-100, -200B, -200F, -200C, -100B, -300, -100B SUD, 747SR and 747SP
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Model 747-100, -200B, -200F, -200C, -100B, -300, -100B SUD, 747SR and 747SP
CERTIFICATE LIMITATIONS
Fueling and use of the centre auxiliary fuel tank and auxiliary fuel tanks 1 and 4 (if installed) is prohibited.
The centre wing tank (CWT) must contain a minimum of 17,000 pounds (7,700 kilograms) of fuel prior to engine start, if the CWT override/jettison pumps are to be selected ON during flight.
The CWT fuel quantity indication system must be operative to dispatch with CWT mission fuel.
Both CWT override/jettison pump switches must be selected OFF at or before the CWT fuel quantity reaches 7,000 pounds (3,200 kilograms), if the CWT fuel quantity is less than 50,000 pounds (22,700 kilograms) prior to engine start. The CWT override pumps may be selected ON during stabilized cruise conditio ns. Both CWT override/jettison pump switches must be selected OFF at or before the CWT fuel quantity reaches 3,000 pounds (1,400 kilograms).
Both CWT override/jettison pump switches must be selected OFF at or before the CWT fuel quantity reaches 3,000 pounds (1,400 kilograms), if the CWT fuel quantity is greater than or equal to 50,000 pounds (22,700 kilograms) prior to engine start.
Both CWT override/jettison pumps must be selected OFF when either CWT override/jettison fuel pump low pressure light illuminates.