Service difficulty report · Warning System · Boeing 737890

Difficulty date
February 6, 2019
Submitted
February 7, 2019
Operation
Air carrier
Aircraft
N589AS
Make and model
Boeing 737890
Aircraft serial
35686
Aircraft time
42,701 hours, 12,870 cycles
Part
Warning System
Condition
False Activation
Location
Cockpit
Stage of operation
NR
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.

What was found

ZONE TEMP CONTROL ZONE CAUTION LIGHT ILLUMINATED ON RECALL AND RESET ON MASTER CAUTION RESET. GROUNDED - YES. PERFORMED FIM 21-61 TASK 801 BITE PROCS. NO HISTORY IN 30 DAYS. NO FAULT NOTED. RESET BOX. OPS NORMAL.