# SDR CALA2026051116107

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 6, 2026
- Submitted: May 11, 2026
- Operation: Air carrier
- Aircraft: [N794UA](https://openairdocs.org/aircraft/N794UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26953
- Aircraft time: 114,850 hours, 15,000 cycles
- Engine: Pwa PW4090
- System (JASC): [7320 · Fuel Controlling System](https://openairdocs.org/jasc/7320)
- Part: Fmu
- Part number: 8088001
- Part serial: F61508
- Condition: Faulty
- Location: Nr 1 Engine
- Part time: 58,842 hours, 8,476 cycles
- Stage of operation: NR
- 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/CALA2026051116107

## Discrepancy

LEFT ENG FUEL VALVE MESSAGE. LEFT ENGINE: MESSAGE NOT LATCH RESET AND RAN ENG BLOW OUT FUMES, STARTED ENG NORMAL PARAMETERS NORMAL START, AT SHUT DOWN SMOKE ON THE TAIL AND FIRE ON THE TAIL PIPE FOR A SHORT TIME.  REMOVED #1 ENG FMU REF AMM 73-21-01. REPLACED #1 ENG FMU REF AMM 73-21-01. OPS AND LEAK CHECK GOOD.

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