# SDR SWAA2023121431389

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 13, 2023
- Submitted: December 14, 2023
- Operation: Air carrier
- Aircraft: N493WN
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32477
- Aircraft time: 62,520 hours, 37,424 cycles
- System (JASC): [2841 · Fuel Quantity Indicator](https://openairdocs.org/jasc/2841)
- Part: Unknown
- Part number: UNKNOWN
- Condition: Unknown
- Location: Unknown
- Stage of operation: CR
- How discovered: 9
- Nature of condition: K, O
- Precautionary procedure: A, O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2023121431389

## Discrepancy

WHILE AT CRUISE WITH FUEL IN THE CENTER TANK AND CENTER TANK PUMPS ON FUEL BEGAN TO DECREASE FROM #1 TANK. UPON RUNNNG THE QRH DETERMINED A FUEL LEAK BY TURNING OFF THE CENTER PUMPS AND WATCHING FUEL RAPIDLY DECREASE FROM #1 TANK.<[01] OP/LEAK CHECKED ALL FUEL SYSTEM TANKS; NO DEFECT NOTED REF AMM?S 28-22-00;12-11-00 & FIM 28-21 TASK 803

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