- Difficulty date
- January 9, 2016
- Submitted
- January 12, 2016
- Operation
- Air carrier
- Make and model
- Boeing 737890
- Aircraft serial
- 35180
- Aircraft time
- 35,324 hours, 10,700 cycles
- Part
- Valve
- Part number
- 3989083
- Part serial
- 8930
- Condition
- Failed
- Location
- Lt A/C Pack
- Part time
- 35,336 hours, 10,702 cycles
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- J
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON MASTER CAUTION RECALL CONTROLLER CABIN ZONE TEMP ILLUMINATES, RESETS WITH MASTER CAUTION RESET. ACFT GROUNDED. NR 2 PACK/ZONE TEMP CONT BITE INDICATES FLT DK TRIM VALVE FAULT, REF AMM 21-61-00. REPLACED FLIGHT DECK TRIM VALVE, INSTALLATION TEST NORMAL REF AMM 21-61-21.