# SDR SWAA2026072828842

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 24, 2026
- Submitted: July 29, 2026
- Operation: Air carrier
- Aircraft: [N250WN](https://openairdocs.org/aircraft/N250WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 34972
- Aircraft time: 65,186 hours, 39,629 cycles
- System (JASC): [2841 · Fuel Quantity Indicator](https://openairdocs.org/jasc/2841)
- Part: Tank Unit
- Part number: 202000207
- Part serial: 786422
- Condition: Leaking
- Location: Zone 600
- Stage of operation: CL
- How discovered: O
- Nature of condition: K
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2026072828842

## Discrepancy

INFLIGHT, NR 2 FUEL IMBALANCE CLIMBING THROUGH FL 250, NOTICED NR 2 FUEL QTY DECREASE BELOW NR 1 ENG QTY.  FUEL IMBALANCE WAS GREATER THAN 3,000LBS. CREW RAN QRH & SHUTDOWN ENG.  ON ACFT REACHING GATE, INSPECTED ACFT FOR OBVIOUS SIGNS OF A FUEL LEAK IAW AMM 28-11-00.  FOUND NO OBVIOUS SIGNS OF A FUEL LEAK FROM RT ENGINE, RT WING OR WHEEL WELL AREAS.  CHKD FUEL QTY AT  REFUEL/DEFUEL PANEL. LT WING HAD 6260 & RT WING 3910 CENTER READ ZERO. CHKD FUEL QTY ON EICAS, FOUND TO BE CONSISTENT WITH FUEL PANEL. TRANSFERED LT WING TO RT, TO ABOUT EVEN. PERFORMED FQIS BITE TEST IAW FIM 28-41, TASK 801.  FOUND NO FAULTS STORED OR CURRENT FAULTS. PERFORMED NR 1 & 2 ENG RUNS IAW AMM 72-00-00, FOR 5 MINS. FOUND NO ABNORMAL FUEL FLUCTUATIONS & NO LEAKS NOTED AFTER SHUTDOWN.  PERFORMED FUEL MEASURING STICK READINGS WHEN TANKS WERE ABOUT EVEN GOT STICK 4 ON RT TO READ ABOUT 5.4 WITHIN LIMITS. TRANSFERRED FUEL BACK TO ORIGINAL NUMBRS AT ARRIVAL TO GATE AND STICK 3 TO READ 11.2, WITHIN LIMITS OF SP#28 OF MEL 28-6-01.R & R RT WING TANK COMPENSATOR & TANK UNITS , F2, F3, & F5 IAW AMM 28-41-21

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