What was found
CONT CAB ZONE TEMP LIGHT ILLUMINATED ON DESCENT OUT OF FL25000. GROUNDED - YES. REF B737-800 FIM TASK 21-62 TASK 842, BOTH PZTC BITE TESTS GOOD. VERIFIED PACKS OPS CHECKED NORMAL ON GND W/O FAULTS. REMOVED MEL 21-21G, C/N 05042592.
- Difficulty date
- January 5, 2020
- Submitted
- January 8, 2020
- Operation
- Air carrier
- Aircraft
- N592AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35190
- Aircraft time
- 45,737 hours, 13,719 cycles
- System (JASC)
- 2160 · Cabin Temperature Control System
- Part
- Warning System
- Condition
- False Activation
- Location
- Cockpit
- Stage of operation
- DE
- How discovered
- O
- Nature of condition
- N
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.