# SDR AALA202604140568

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 11, 2026
- Submitted: April 14, 2026
- Operation: Air carrier
- Aircraft: [N960AN](https://openairdocs.org/aircraft/N960AN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 29542
- Aircraft time: 70,555 hours, 30,015 cycles
- System (JASC): [2822 · Fuel Boost Pump](https://openairdocs.org/jasc/2822)
- Part: Pressure Switch
- Part number: 21C1321
- Condition: Low Pressure
- Location: Zone 100
- Stage of operation: NR
- 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/AALA202604140568

## Discrepancy

AIRCRAFT WAS GROUNDED: AFT FUEL PUMP LOW PRESSURE LIGHT ILLUMINATED WHEN TURNED ON. LEFT MAIN TANK AFT BOOST PUMP INOPERATIVE.  REMOVE AND REPLACED NUMBER 1 AFT FUEL PUMP LOW PRESSURE SWITCH. PER AMM 28-42-11. OPS CHECK GOOD. LEAK CHECK GOOD.

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