What was found
ON RECALL CONT CAB ZONE TEMP LIGHT COMES ON. GROUNDED-YES. REPLACED ZONE TRIM AIR MODULATING VALVE, REF B737-800 AMM 21-61-21-400-801. OPERATIONS NORMAL. CLEARED FAULT, REF AMM 21-61-00-700-806-002.
- Difficulty date
- December 10, 2020
- Submitted
- December 15, 2020
- Operation
- Air carrier
- Aircraft
- N584AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35682
- Aircraft time
- 49,069 hours, 14,560 cycles
- System (JASC)
- 2160 · Cabin Temperature Control System
- Part
- Modulating Valve
- Part number
- 3989083
- Part serial
- 233C
- Condition
- Faulted
- Location
- Lt A/C Pack
- Part time
- 23,868 hours, 6,898 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.