# SDR IPXA2026050463519

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 30, 2026
- Submitted: May 4, 2026
- Operation: Air carrier
- Aircraft: [N447UP](https://openairdocs.org/aircraft/N447UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 27736
- Aircraft time: 36,873 hours, 20,976 cycles
- System (JASC): [2810 · Fuel Storage](https://openairdocs.org/jasc/2810)
- Part: Fuel Sys
- Condition: Out Of Balance
- Location: Lt & Rt Cells
- Stage of operation: CR
- 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/IPXA2026050463519

## Discrepancy

SUSPECT INTERNAL FUEL LEAK. OBSERVED 1900 LB FUEL IMBALANCE BETWEEN L+R FUEL TANKS DEVELOP OVER 1:49 FLIGHT TIME. FINAL LANDING FUEL L TANK 6.1 / C TANK 0.0 / R TANK 4.2 TOTALIZER AND FMC CALC BOTH - REF BARCODE T3F18E008RT44 FOR LH FUEL SOV ACTUATOR R&R OPS CK GOOD NO OTHER DEFECTS NOTED. TURNED ON ALL PUMPS IN LH AND RH MAIN TANKS REF AMM 28-26-00, NO FUEL IMBALANCE AT THIS TIME. THIS CLEARS DEFERRAL

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