# SDR CNMA201908070001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 3, 2019
- Submitted: August 7, 2019
- Operation: Air carrier
- Aircraft: [N828AX](https://openairdocs.org/aircraft/N828AX), registered now
- Make and model: Boeing 777-2U8
- Registry model: [Boeing 777-2U8](https://openairdocs.org/model/boeing-777-2u8) (OpenAirDocs)
- Aircraft serial: 33682
- Aircraft time: 42,286 hours, 6,960 cycles
- System (JASC): [2840 · Fuel Indicating System](https://openairdocs.org/jasc/2840)
- Part: Probe
- Part number: 0320KPU01
- Part serial: 021526
- Condition: Inaccurate
- Location: Center Tank Fuel
- Stage of operation: CL
- How discovered: O
- Nature of condition: N
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CNMA201908070001

## Discrepancy

EICAS MESSAGE "FUEL DISAGREE" DISPLAYED ON CLIMB OUT. TOTALIZER FUEL READ 16 THOUSAND LBS. LESS THAN CALCULATED FUEL AND LIFT OFF FUEL SHOWED 6 THOUSAND LBS LESS THAN FLT PLN EXPECTED LIFT OFF FUEL. PERFORMED APPR CHECKLIST NON NORMAL. 2 POSSIBLIES - FUEL LEAK IN CTR TNK OR BAD CENTER FUEL GAUGE. QRH PROCEDURE INDICATES POSSIBLE CENTER TANK FUEL LEAK. CORRECTIVE ACTION: REMOVED AND REPLACED ALL CTR TANK FUEL PROBES PER AMM 28-11.

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