# SDR 2007UALA04731

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 19, 2007
- Submitted: February 7, 2008
- Operation: Air carrier
- Aircraft: [N786UA](https://openairdocs.org/aircraft/N786UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26938
- Aircraft time: 46,304 hours, 6,978 cycles
- Engine: Pwa PW4090
- System (JASC): [2830 · Fuel Dump System](https://openairdocs.org/jasc/2830)
- Part: Valve
- Part number: AV16B1659C
- Part serial: 4095
- Condition: Faulty
- Location: Fuel System
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2007UALA04731

## Discrepancy

FLIGHT DIVERTED TO YEG TO REMOVE AN ILL PASSENGER.  THE AIRCRAFT DEVELOPED A MECHANICAL PROBLEM AND RETURNED TO SFO.  REPLACED RT JET ISOLATION VALVE.  OP CHK'D THRU MAINT ACCESS TERMINAL.  PASSED, NO EXISTING FAULT.  NO STATUS MSG.

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