Service difficulty report · Pressure Switch · Boeing 737823

Difficulty date
May 8, 2026
Submitted
May 13, 2026
Operation
Air carrier
Aircraft
N925NN
Make and model
Boeing 737823
Aircraft serial
31169
Aircraft time
38,006 hours, 16,499 cycles
Part
Pressure Switch
Part number
21C13211
Condition
Faulted
Location
Zone 600
Stage of operation
CR
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: RIGHT WING AFT FUEL PUMP LOW PRESSURE LIGHT WILL NOT ILLUMINATEIN FLIGHT WITH SWITCH IN OFF POSITION. NOTICED AT CRUISE WHILE ATTEMPTING TO BALANCE FUEL. REMOVED AND REPLACED THE RIGHT AFT FUEL PUMP LOW PRESSURE SWITCH CONNECTOR (AALA202605120966) AND SOCKETS (AALA202605129201). PER SWMP CH. 20. OPS CHECK GOOD.