What was found
DURING TAXI (AFTER #1 ENGINE START) CONT CAB ZONE TEMP LIGHT ILLUMINATES ON RECALL.EXTINGUISHES ON MASTER CAUTION RESET. GROUNDED - YES. REMOVED AND REPLACED CONTROL CABIN TRIM MODULATING VALVE (V143) REF B737-800 AMM 21-61-21/401.
- Difficulty date
- January 26, 2023
- Submitted
- January 31, 2023
- Operation
- Air carrier
- Aircraft
- N562AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35091
- Aircraft time
- 59,419 hours, 17,508 cycles
- System (JASC)
- 2160 · Cabin Temperature Control System
- Part
- Valve
- Part number
- 3989083
- Part serial
- 1850
- Condition
- Faulty
- Location
- Left Ecs Bay
- Part time
- 95,404 hours, 40,595 cycles
- Stage of operation
- TX
- How discovered
- V
- Nature of condition
- J
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.