Service difficulty report · Pressure Switch · Boeing 737823

Difficulty date
July 29, 2025
Submitted
August 11, 2025
Operation
Air carrier
Aircraft
N829NN
Make and model
Boeing 737823
Aircraft serial
33210
Aircraft time
46,127 hours, 19,426 cycles
Part
Pressure Switch
Part number
21C1322
Condition
Inoperative
Location
Zone 500
Stage of operation
NR
How discovered
V
Nature of condition
J
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: LEFT AFT FUEL PUMP LIGHT DOES NOT ILLUMINATE WHEN TURNED OFF. VERIFIED AFT LEFT FUEL PUMP INOPERATIVE. **SUPPLEMENTAL REPORT FOR (AALA202507317694): REMOVED AND REPLACED LEFT HAND AFT FUEL PUMP PRESS SWITCH. PER AMM 28-42-11**(CLOSED).