# SDR 2007UALA00689

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 6, 2007
- Submitted: March 13, 2007
- Operation: Air carrier
- Aircraft: [N213UA](https://openairdocs.org/aircraft/N213UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 30219
- Aircraft time: 23,172 hours, 5,306 cycles
- Engine: Pwa PW4077
- System (JASC): [3810 · Potable Water System](https://openairdocs.org/jasc/3810)
- Part: Outflow Valve
- Condition: Stuck
- Location: Cabin Water
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2007UALA00689

## Discrepancy

FLIGHT DIVERTED DUE TO NO WATER PRESSURE.  PRE-SELECT OVERFLOW VALVE FOUND TO STICK IN SEMI-CLOSED POSITION.  PRIOR TO REPLACEMENT- CHECKED LINKAGES, INDICATION & VALVE OPERATION.  VLV OPERATION NORMAL WITH PRE-SELECT KNOB MOVEMENT AT FWD SERVICE PANEL.  PRECAUTIONARY:  REPLACED PRE-SELECT OVERFLOW VALVE.  OPS CHECK OK.

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