What was found
TEMPS FLUCTUATING APPROX 8-10 DEGREES IN AUTO ON ALL 4 CONTROLLERS. MANUAL, NO HELP. REPLACED ZONE TEMP CONTROLLER. FOUND TRIM VALVES NOT FOLLOWING SELECTED TEMP. AFTER REPLACED OF CONTROLLER TRIM VALVES NOW FOLLOW SELECTED TEMP.
- Difficulty date
- January 1, 2010
- Submitted
- January 4, 2010
- Operation
- Air carrier
- Aircraft
- N668UA
- Make and model
- Boeing 767322
- Aircraft serial
- 30024
- Aircraft time
- 38,758 hours, 10,517 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 2161 · Cabin Temperature Controller
- Part
- Controller
- Part number
- 11518661
- Part serial
- 14
- Condition
- Malfunctioned
- Location
- Cabin Temp
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.