# SDR AALA202604223175

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 17, 2026
- Submitted: April 22, 2026
- Operation: Air carrier
- Aircraft: [N872NN](https://openairdocs.org/aircraft/N872NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 33219
- Aircraft time: 42,922 hours, 18,513 cycles
- System (JASC): [2822 · Fuel Boost Pump](https://openairdocs.org/jasc/2822)
- Part: Relay
- Part number: KDAGX4F001
- Condition: Failed
- 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/AALA202604223175

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: LEFT AFT FUEL PUMP LOW PRESSURE LIGHT REMAINS ON WITH SWITCH IN ON POSITION. REOPENED DUE TO NOT COMPLETING A SINGLE FLIGHT LEG.   FOUND NO VOLTAGE AT CONNECTOR D70, REMOVED AND REPLACED GFI RELAY R18. PER AMM 28-22-18.

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