What was found
AFT ZONE TEMP FAULT LIGHT ON. GROUNDED - YES. FOUND AFT ZONE VALVE FAULT ON LH CONTROLLER PERFORMED BITE PER B737-900 FIM 21-61 TASK 801 NO HISTORY 90 DAYS NO FAULTS NOTED.
- Difficulty date
- November 11, 2018
- Submitted
- November 14, 2018
- Operation
- Air carrier
- Aircraft
- N431AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 43255
- Aircraft time
- 20,169 hours, 6,653 cycles
- System (JASC)
- 2160 · Cabin Temperature Control System
- Part
- Valve
- Condition
- Faulted
- Location
- Zone 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.