What was found
CABIN TEMP CONTROL ZONE "B" PUTTING OUT HOT AIR. TEST FAILED. VALVE LOCKED AT 20 PERCENT.
- Difficulty date
- May 16, 2013
- Submitted
- May 17, 2013
- Operation
- Air carrier
- Aircraft
- N116UA
- Make and model
- Boeing 747422
- Aircraft serial
- 26908
- Aircraft time
- 58,244 hours, 6,739 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 2160 · Cabin Temperature Control System
- Part
- Valve
- Condition
- Unknown
- Location
- Cabin Temp
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.