# SDR AALA202604078704

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 5, 2026
- Submitted: April 8, 2026
- Operation: Air carrier
- Aircraft: [N910AN](https://openairdocs.org/aircraft/N910AN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 29512
- Aircraft time: 69,831 hours, 28,895 cycles
- System (JASC): [2820 · Aircraft Fuel Distribution System](https://openairdocs.org/jasc/2820)
- Part: Pressure Switch
- Part number: ASP4560
- Condition: Failed
- Location: Fuel System
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202604078704

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: AFT FUEL PUMP 1 LOW PRESSURE ILLUMINATED UPON TURNING ON AT GATE THEN CAME BACK ON AGAIN AT CRUISE UPON BALANCING FUEL. REMOVE AND REPLACED LEFT HAND WING AFT FUEL PUMP PRESSURE SWITCH. PER MM 28-42-11. OPS CHECK GOOD.

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