Service difficulty report · Pump · Boeing 737823

Difficulty date
November 4, 2025
Submitted
November 12, 2025
Operation
Air carrier
Aircraft
N915NN
Make and model
Boeing 737823
Aircraft serial
33227
Aircraft time
37,274 hours, 16,148 cycles
Part
Pump
Part number
607551005
Part serial
101253322
Condition
Faulted
Location
Zone 100
Part time
15,240 hours, 7,129 cycles
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

AIRCRAFT WAS NOT GROUNDED: NUMBER 1 ENGINE FORWARD BOOST PUMP, LOW PRESSURE LIGHT ILLUMINATEDON CLIMB OUT. FUEL MASTER CAUTION ILLUMINATED ON RECALL. NUMBER 1 BOOST PUMP INOPERATIVE. ACCOMPLISHED FIM TASK 28-22-00-810-804. FOUND LEFT HAND FORWARD BOOST PUMP AT FAULT. REMOVED AND REPLACED BOOST PUMP. PER MM 28-22-41