Service difficulty report · Pressure Switch · Boeing 737823
FAA SDR system
- Difficulty date
- September 6, 2025
- Submitted
- September 8, 2025
- Operation
- Air carrier
- Make and model
- Boeing 737823
- Aircraft serial
- 29507
- Aircraft time
- 67,529 hours, 28,255 cycles
- Part
- Pressure Switch
- Part number
- ASP4560
- Condition
- Faulted
- 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 GROUNDED: #2 AFT PUMP LOW PRESSURE LIGHT DISAGREES WITH PUMP SWITCH POSITION. REPLACED #2 FUEL PUMP LOW PRESS SWITCH (SWIR071) PER AMM 28-42-11 (AALA202509085404) AND FUEL SYSTEM MODULE P5-2 PER AMM 28-22-43. (AALA202509085404)