Service difficulty report · Pump · Boeing 7378

Difficulty date
January 27, 2024
Submitted
February 2, 2024
Operation
Air carrier
Aircraft
N37318
Make and model
Boeing 7378
Aircraft serial
67602
Aircraft time
909 hours, 300 cycles
Engine
Cfmint LEAP1B28
Part
Pump
Part number
2566M05P04
Part serial
WYGW3855
Condition
Leaking
Location
Nr 2 Engine
Part time
852 hours, 287 cycles
Stage of operation
IN
How discovered
9
Nature of condition
K, J
Precautionary procedure
K

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

What was found

#2 ENG LEAKING FUEL UPON ARRIVAL. FUEL PUMP DRAIN RUNNING FUEL IS OUT OF LIMITS. REMOVED ENG #2 MAIN FUEL PUMP REF AMM 73-11-01, NEEDS INSP BUYBACK FOR SEALS AND INTERFACE. INSPECTED P/N 2556M05P04 PER IPC , PACKINGS , AND INTERFACE INSPECTED, CLEAR TO INSTAL. INSTALLED ENG #2 MAIN FUEL PUMP REF AMM 73-11-01, PERFORMED DRY MOTOR LEAK TEST REF AMM 71-00-00 TEST 2, NEEDS INSP BUYBACK FOR FINAL AND LEAK TEST. PARTS USED: QTY :1 ROTABLE PARTS CHANGE WAS INDICATED - TT # 1533593 SN OFF 3855 INSPECTED INSTALLATION AND SECURITY OF #2 ENG FUEL PUMP AND LEAK TEST DRY. REF GMM 09-10-05 PUMP, FUEL OFF 42-7311-9-0003 3855 ON 0000 PUMP, FUEL OFF 42-7311-9-0003 3855 ON 42-7311-9-0003 4941 UPDATED INFO FOR SDR ON LOG PAGE 6929252. PERFORMED IDLE TEST REF AMM 71-00-00 TEST 4 NO FAULTS FOUND. OPS CHECK GOOD LEAK CHECK GOOD OK TO CONTINUE.

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