Service difficulty report · Pump · Boeing 777222

Difficulty date
October 10, 2012
Submitted
November 7, 2012
Operation
Air carrier
Aircraft
N779UA
Make and model
Boeing 777222
Aircraft serial
26941
Aircraft time
66,615 hours, 11,813 cycles
Engine
Pwa PW4077
Part
Pump
Part number
72330112
Part serial
21
Condition
Leaking
Location
Nr 1 Engine
Stage of operation
IN
How discovered
V
Nature of condition
K
Precautionary procedure
K

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

What was found

NR 1 ENG FUEL LEAKING BETWEEN FUEL PUMP AND FMU AT SIX O'CLOCK POSITION. WHILE PERFORMING ENG RUNS OFF OF A-13 CHECK FOUND FUEL LEAK NUMBER 1 ENGINE BETWEEN FUEL CONTROL AND PUMP. R & R NR 1 ENG FUEL PUMP PER MM. REPLACED NR 1 ENG FUEL PUMP PER MM UP STEP G2I. ACCOMPLISHED IDLE LEAK CHECK, NO LEAKS NOTED.