What was found
"CONT CABIN" ZONE TEMP LIGHT ILLUMINATES ON RECALL IT EXTINGUISHES WITH MASTER CAUTION RESET. GROUNDED - YES. REMOVED AND REPLACED TEMPERATURE CONTROL VALVE IN REF TO B737-800 AMM 21-51-10.
- Difficulty date
- January 14, 2023
- Submitted
- January 17, 2023
- Operation
- Air carrier
- Aircraft
- N532AS
- Make and model
- Boeing 737890
- Aircraft serial
- 36346
- Aircraft time
- 45,400 hours, 13,384 cycles
- System (JASC)
- 2150 · Cabin Cooling System
- Part
- Modulating Valve
- Part number
- 3989083
- Part serial
- 2915
- Condition
- Faulted
- Location
- Left Ecs Bay
- Part time
- 15,113 hours, 4,349 cycles
- 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.