What was found
AFTER ENGINE START ON RECALL THE CONTROL CABIN ZONE TEMP LIGHT ILLUMINATED. REPLACED ZONE TRIM AIR MODULATING VALVE. OPS BITE CHECKED GOOD.
- Difficulty date
- November 18, 2007
- Submitted
- November 21, 2007
- Operation
- Air carrier
- Aircraft
- N557AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35176
- Aircraft time
- 5,427 hours, 1,569 cycles
- System (JASC)
- 2160 · Cabin Temperature Control System
- Part
- Valve
- Part number
- 3989083
- Condition
- Faulty
- Location
- Cabin Pressure
- 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.