Service difficulty report · Pressure Switch · Boeing 737823

Difficulty date
August 14, 2025
Submitted
August 20, 2025
Operation
Air carrier
Aircraft
N335PH
Make and model
Boeing 737823
Aircraft serial
31265
Aircraft time
23,761 hours, 10,356 cycles
Part
Pressure Switch
Part number
ASP4560
Condition
Inoperative
Location
Zone 500
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: LEFT AFT FUEL PUMP LOW PRESSURE LIGHT ILLUMINATED DURING LEVEL FLIGHT. REMOVE AND REPLACED LEFT HAND AFT LOW PRESSURE SWITCH. PER AMM 28-42-11.