What was found
"ZONE TEMP" AMBER ANNUNCIATOR ON OVERHEAD PANEL CONT CAB. EXTINGUISHES ON M.C RESET. GROUNDED - YES. R/R ZONE TRIM AIR MODULATING VALVE (V00143) IAW B737-800 AMM 21-61-21-400-801.
- Difficulty date
- April 29, 2023
- Submitted
- May 1, 2023
- Operation
- Air carrier
- Aircraft
- N531AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35199
- Aircraft time
- 45,519 hours, 13,195 cycles
- System (JASC)
- 2160 · Cabin Temperature Control System
- Part
- Modulating Valve
- Part number
- 3989085
- Part serial
- 28879
- Condition
- Faulty
- Location
- Left Ecs Bay
- Part time
- 18,855 hours, 6,127 cycles
- Stage of operation
- NR
- 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.