Service difficulty report · Pump · Boeing 7379

Difficulty date
August 14, 2023
Submitted
August 17, 2023
Operation
Air carrier
Aircraft
N979AK
Make and model
Boeing 7379
Aircraft serial
43393
Aircraft time
4,230 hours, 1,285 cycles
Engine
Cfmint LEAP1B21
Part
Pump
Part number
2566M05P04
Part serial
WYGL2026
Condition
Leaking
Location
#2 Engine
Part time
4,242 hours, 1,288 cycles
Stage of operation
TX
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

FUEL LEAKING UNDER #2 ENGINE LEAVING TRAIL ON TAXI IN. GROUNDED - YES. TAGGED OUT FLAP LEVER, B SYS HYDROS, START SWITCH, OPENED # 2 ENG FAN COWLS, RAN #2 ENG. FUEL COMING FROM FUEL PUMP PAD ( STEADY FLOW) REF AMM 71-71-00-200-801, CLOSED FAN COWLS, REMOVED TAGS FROM FLAP LEVER, B SYS HYDROS, START SWITCH, T PAULSEN 00631 08/14/2023 MIG 2C 40-0054605 INIT. M CASTONGUAY 50340 ALTERNATE DEACTIVATION PEOCEDURE USED, TABLE 3 ITEM 7 REF CHAPTER 5. #2 ENG MPF WAS REPLACED AND LEAK CK GOOD, NO DEFECT NOTED. REF AMM 73-11-01-400-801-G00. ALT DEACTIVACTION PROCEDURE REVERSED. MIG-2C #40-0054609 CLOSED.

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