# SDR UALA2013041502531

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 12, 2013
- Submitted: June 27, 2013
- Operation: Air carrier
- Aircraft: [N122UA](https://openairdocs.org/aircraft/N122UA), registered now
- Make and model: Boeing 747422
- Aircraft serial: 29168
- Aircraft time: 57,332 hours, 6,694 cycles
- Engine: Pwa PW4056
- System (JASC): [3040 · Windshield/Door Rain/Ice Removal](https://openairdocs.org/jasc/3040)
- Part: Thermostat
- Condition: Faulty
- Location: Window Heat
- Stage of operation: NR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2013041502531

## Discrepancy

FIRST OFFICER'S AFT SIDE WINDOW NOT BEING HEATED KEEPS FROSTING OVER.  REPLACED NR 3 WINDOW CONTROL THERMOSTAT PER MM, WINDOW HEATS OKAY.

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