# SDR AALA202510304928

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 21, 2025
- Submitted: October 30, 2025
- Operation: Air carrier
- Aircraft: [N810NN](https://openairdocs.org/aircraft/N810NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 33207
- Aircraft time: 47,780 hours, 20,225 cycles
- System (JASC): [2897 · Fuel System Wiring](https://openairdocs.org/jasc/2897)
- Part: Wire Harness
- Condition: Faulty
- Location: Zone 500
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202510304928

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: LEFT MAIN FUEL TANK QUANTITY INDICATION ERRATIC. FUEL QUANTITY SHOWS INCREASING AND DECREASING CONSTANTLY WHEN CROSS-FEEDING AND LEFT MAIN TANK FUEL PUMPS TURNED OFF. CONFIRMED LEFT FLIGHT DECK FUEL TANK INDUCTION INOPERATIVE. **SUPPLEMENTAL REPORT FOR (AALA202510224928): REMOVED AND REPLACED LEFT WING FUEL TANK FQIS WIRE HARNESS (AALA202510224928), PER AMM 28-41-44. ALSO, REMOVED AND REPLACED FQIS COMPENSATOR (AALA202510305674), PER AMM 28-41-21. LEAK CHECK AND OPERATIONAL CHECK GOOD**(CLOSED).

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