What was found
FWD CABIN ZONE TEMP LIGHT OVERHEAD. GROUNDED - YES. REF B737-800 AMM 21-61-21 REMOVED AND REPLACED TRIM AIR VALVE (TAV), OPS TEST GOOD.
- Difficulty date
- May 19, 2023
- Submitted
- May 23, 2023
- Operation
- Air carrier
- Aircraft
- N557AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35176
- Aircraft time
- 61,899 hours, 18,050 cycles
- System (JASC)
- 2160 · Cabin Temperature Control System
- Part
- Modulating Valve
- Part number
- 3989083
- Part serial
- 8669
- Condition
- Faulty
- Location
- Left Ecs Bay
- Part time
- 61,939 hours, 18,061 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.