Service difficulty report · Connector · Boeing 757222

Difficulty date
December 16, 2009
Submitted
December 31, 2009
Operation
Air carrier
Aircraft
N546UA
Make and model
Boeing 757222
Aircraft serial
25367
Aircraft time
67,600 hours, 19,675 cycles
Engine
Pwa PW2037
Part
Connector
Part number
D47104P
Condition
Unsecure
Location
Boost Pump
Stage of operation
CR
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

LT AFT BOOST PUMP LOW PRESS LIGHT ON, EICAS MSG L AFT FUEL PUMP DISPLAYED. LT AFT BOOST PUMP CB (C366) TRIP AT P6 PANEL. FOUND PIN 1 AT CONNECTOR D1746 SHORTED TO GND OR SHIELD GND WITH CONNECTOR D41704P DISCONNECTED AT P33 PANEL POSITION 24. CONNECTOR D41704P SECURED. NEEDS FURTHER T/S. REPLACED CONNECTOR AT J BOX BOOST PUMP HARNESS. WHILE REPLACING LH AFT BOOST PUMP, FOUND HARDWARE IS DAMAGED OR STRIPPED. HARDWARE ON ORDER. NEW PUMP IN AREA. REPLACED BOOST PUMP. OPS CHECK LEAK CHECK GOOD.