What was found
ZONE C TEMP CONTROL TARGET TEMP BLANK AT C ACCOMPLISHED AND ZONE C TRIM AIR VALVE FAILED ON GROUND TEST PRIOR SUSPECT ZONE TRIM MODULATING VALVE.
- Difficulty date
- August 8, 2012
- Submitted
- September 14, 2012
- Operation
- Air carrier
- Aircraft
- N227UA
- Make and model
- Boeing 777222
- Aircraft serial
- 30555
- Aircraft time
- 44,107 hours, 5,349 cycles
- Engine
- Pwa PW40903
- System (JASC)
- 2160 · Cabin Temperature Control System
- Part
- Valve
- Part number
- 8102212
- Condition
- Faulty
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- P
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.