What was found
ZONE TEMP ILLUMINATED FOR CONT CAB ON RECALL. LIGHT CLEARED WITH MASTER CAUTION RESET. GROUNDED - YES. REMOVED AND REPLACED CONTROL CAB TRIM AIR VALVE PER B737-800 AMM 21-61-21. OPS AND LEAK CHECK GOOD.
- Difficulty date
- January 10, 2022
- Submitted
- January 14, 2022
- Operation
- Air carrier
- Aircraft
- N587AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35684
- Aircraft time
- 50,687 hours, 14,741 cycles
- System (JASC)
- 2160 · Cabin Temperature Control System
- Part
- Modulating Valve
- Part number
- 3989083
- Part serial
- 11354
- Condition
- Intermittent
- Location
- Left Ecs Bay
- Part time
- 32,016 hours, 15,462 cycles
- Stage of operation
- NR
- How discovered
- V
- Nature of condition
- J
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.