# SDR 2000UALA00628

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 26, 2000
- Submitted: January 25, 2001
- Operation: Air carrier
- Aircraft: [N661UA](https://openairdocs.org/aircraft/N661UA), registered now
- Make and model: Boeing 767322
- Aircraft serial: 27158
- Aircraft time: 33,377 hours, 5,360 cycles
- Engine: Pwa PW4060
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Relay
- Condition: Failed
- Location: E/E Bay
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: J, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2000UALA00628

## Discrepancy

EICAS MSG FWD EQPT VAL DISPLAYED.EQUIPMENT COOLING ''VALVE'' LIGHT ILLUMINATED.  STBY  SELECTED &  VALVE  LIGHT REMAINED. DUMPED 35.8 FUEL. DIVERTED MIA SUPPLEMENTAL DATA UPDATE RELAY K1043 AIR/GROUND WAS FOUND STUCK IN THE GROUND POSITION.  WHEN RELAY WAS REMOVED AND REINSTALLED THE SYSTEM OPERATED NORMALLY.  RELAY K1043 WAS REPLACED.  RELAY K1188 AIR/GROUND IND SLAVE WAS REPLACED PRECAUTIONARY.  THE AIRCRAFT DEVELOPED A DIFFERENT FAULT ONE WEEK LATER.  THIS FAULT WAS CORRECTED BY REPLACING THE OVERBOARD EXHAUST VALVE.

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