What was found
CONT CAB ZONE TEMP ILLUMINATES WITH RECALL. GROUNDED - YES. REMOVED AND REPLACED TRIM MODULATING VALVE, CONTROL CAB REF B737-800 AMM 21-61-21. OPS CHECK GOOD.
- Difficulty date
- June 28, 2023
- Submitted
- July 3, 2023
- Operation
- Air carrier
- Aircraft
- N533AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35201
- Aircraft time
- 45,338 hours, 13,115 cycles
- System (JASC)
- 2160 · Cabin Temperature Control System
- Part
- Modulating Valve
- Part number
- 3989085
- Part serial
- 2596
- Condition
- Faulty
- Location
- Left Ecs Bay
- Part time
- 77,001 hours, 35,666 cycles
- Stage of operation
- IN
- 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.