# SDR UALA2013012200389

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 21, 2013
- Submitted: February 8, 2013
- Operation: Air carrier
- Aircraft: [N206UA](https://openairdocs.org/aircraft/N206UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 30212
- Aircraft time: 60,181 hours, 8,584 cycles
- Engine: Pwa PW40903
- System (JASC): [2160 · Cabin Temperature Control System](https://openairdocs.org/jasc/2160)
- Part: Valve
- Part number: 8102212
- Part serial: 98066212
- Condition: Faulty
- Location: Zone C
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2013012200389

## Discrepancy

CABIN ZONE TEMP SYNOPTIC SHOWS ZONE C BLANK.  F/A REPORT AREA WARM.  REPLACED ZONE C TRIM AIR MODULATING VALVE, TEST PASSED ALL INDICATIONS NORMAL.

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