What was found
AFTER ENGINE START DURING RECALL GOT A "CNTL CAB ZONE TEMP" LIGHT. FOUND CNTL CAB ZONE TRIM MOD VALVE FAULT LOGGED ON NR 1 TEMP CONTROLLER. REPLACED CONTROL CABIN TRIM MOD VALVE. GROUND BITE TEST OK.
- Difficulty date
- February 16, 2008
- Submitted
- February 20, 2008
- Operation
- Air carrier
- Aircraft
- N558AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35177
- Aircraft time
- 6,206 hours, 1,761 cycles
- System (JASC)
- 2160 · Cabin Temperature Control System
- Part
- Modulating Valve
- Part number
- 3989083
- Condition
- Faulty
- Location
- A/C Bay
- Stage of operation
- TX
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.