Service difficulty report · Pump · Boeing 7377Q8

Difficulty date
April 25, 2025
Submitted
April 29, 2025
Operation
Air carrier
Aircraft
N7874B
Make and model
Boeing 7377Q8
Aircraft serial
29352
Aircraft time
60,447 hours, 33,694 cycles
Engine
Cfmint CFM567B242
Part
Pump
Condition
Faulted
Location
Fuel
Stage of operation
TX
How discovered
O
Nature of condition
E
Precautionary procedure
O

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

What was found

#1 ENG FAIL WITH UNCOMMANDED SHUT DOWN DURING TAXI IN.<[01] PERFORMED FIM 73-05 TASK 805; FOUND EEC 1 CODE FAULT 73-20811; CHIPS DETECTORS FOUND OK; FUEL FILTER FOUND OK; BLEED CHECK VALVE FOUND OK; VSV FOUND OK AND ACTUATOR TEST PASSED; ENGINE AND DEU DISCRETES FOUND GOOD. FUEL PUMP IMPELLER FOUND IN GOOD CONDITION BUT MAKING NOISE WHEN TURNED HAND CRANK. PERFORMED ENGINE RUN; NO ABNORMALITIES ENGINE STABLE.;[02] R&R FUEL PUMP PACKAGE PER MT 773-11-00. OPS CK GOOD

More about the Boeing 737-7Q8