Service difficulty report · Pressure Switch · Boeing 737823

Difficulty date
February 26, 2026
Submitted
February 28, 2026
Operation
Air carrier
Aircraft
N800NN
Make and model
Boeing 737823
Aircraft serial
29564
Aircraft time
49,362 hours, 20,941 cycles
Part
Pressure Switch
Condition
Inoperative
Location
Zone 100
Stage of operation
NR
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

AIRCRAFT WAS NOT GROUNDED: CREW REPORTED RIGHT AFT FUEL BOOST PUMP LOW PRESSURE LIGHT WILL NOT ILLUMINATE. DUE TO RIGHT AFT FUEL BOOST PUMP LOW PRESS WARNING LIGHT INOPERATIVE AND LEFT AFT BOOST PUMP IS INOPERATIVE. ACCOMPLISHED FIM 28-22-00-810-821. FOUND LOW PRESSURE SWITCH LIGHT NOT OPERATING CORRECTLY. REMOVED AND REPLACED AFT BOOST PUMP LOW PRESSURE SWITCH. PER AMM 28-42-11. OPS CHECKED GOOD.