What was found
TEMPERATURE OSCILLATES + AND - 10 DEGREES IN BOTH CABIN & COCKPIT. NEEDS MORE TIME TO T/S. REPLACED ZONE TRIM AIR MODULATING VALVE PER MM, OPS TEST NORMAL.
- Difficulty date
- February 2, 2012
- Submitted
- March 2, 2012
- Operation
- Air carrier
- Aircraft
- N653UA
- Make and model
- Boeing 767322
- Aircraft serial
- 25391
- Aircraft time
- 83,171 hours, 13,396 cycles
- Engine
- Pwa PW4060
- System (JASC)
- 2160 · Cabin Temperature Control System
- Part
- Modulating Valve
- Part number
- 3987865
- Part serial
- 569
- Condition
- Faulty
- Location
- Ac Bay
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.