# SDR AALA202602233269

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 20, 2026
- Submitted: February 23, 2026
- Operation: Air carrier
- Aircraft: [N923AN](https://openairdocs.org/aircraft/N923AN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 29524
- Aircraft time: 73,990 hours, 31,174 cycles
- System (JASC): [2840 · Fuel Indicating System](https://openairdocs.org/jasc/2840)
- Part: Pressure Switch
- Condition: Faulty
- Location: Zone 100
- Stage of operation: NR
- How discovered: O
- Nature of condition: S
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202602233269

## Discrepancy

AIRCRAFT WAS GROUNDED: WHEN CENTER FUEL TANK WAS EMPTY LEFT CENTER LOW PRESSURE LIGHT AND ASSOCIATED CAUTION DID NOT ILLUMINATE. THE LEFT CENTER PUMP WAS LEFT ON FOR AN EXTENDED TIME, BUT THE LOW PRESSURE CAUTION FROM THE LEFT PUMP NEVER ILLUMINATED. BULBS TEST GOOD. REPLACED LEFT CENTER TANK BOOST PUMP LOW PRESSURE SWITCH. OPS AND LEAKED CHECK GOOD. PER AMM 28-42-11.

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