What was found
CONTROL CABIN ZONE LIGHT ILLUMINATED. ACFT GROUNDED. REMOVED AND REPLACED THE FLIGHT DECK TRIM VALVE IAW AMM 21-61-21, BITE CHECK PASSED AND NO DEFECTS NOTED IAW AMM TASK 21-61-00-700-806-002.
- Difficulty date
- January 29, 2018
- Submitted
- February 1, 2018
- Operation
- Air carrier
- Aircraft
- N533AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35201
- Aircraft time
- 27,700 hours, 8,113 cycles
- System (JASC)
- 2160 · Cabin Temperature Control System
- Part
- Valve
- Part number
- 3989083
- Part serial
- 12507
- Condition
- Faulted
- Location
- Lt A/C Pack
- Part time
- 27,727 hours, 8,120 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.