Service difficulty report · Pump · Boeing 777222

Difficulty date
August 28, 2011
Submitted
September 12, 2011
Operation
Air carrier
Aircraft
N787UA
Make and model
Boeing 777222
Aircraft serial
26939
Aircraft time
63,181 hours, 9,290 cycles
Engine
Pwa PW40903
Part
Pump
Part number
568129115004
Part serial
1
Condition
Faulty
Location
Fuel System
Stage of operation
NR
How discovered
O
Nature of condition
O
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

LEFT AFT FUEL PUMP LOW PRESS LIGHTS INOP. LEFT AFT FUEL PUMP LOW PRESS LIGHTS INOP. THE OTHER LOW PRESS LIGHTS WORK OK. SYNOPTIC AGREES WITH SWITCH POSITION. SWITCH LIGHT TEST OK, BUT NO LIGHT WHEN PUMP & APU OFF. L AFT BOOST PUMP IS INOP. RPL LT AFT MAIN BOOST PUMP. OPS CK OKAY.