Service difficulty report · Warning System · Boeing 737890

Difficulty date
January 21, 2012
Submitted
January 23, 2012
Operation
Air carrier
Aircraft
N531AS
Make and model
Boeing 737890
Aircraft serial
35199
Aircraft time
6,462 hours, 2,109 cycles
Part
Warning System
Condition
False Activation
Location
Cockpit
Stage of operation
TX
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

FLT DECK ZONE TEMP LIGHT ILLUMINATES W/MASTER CAUTION LIGHT AFTER ENGINE START. GOES OUT ON RESET. FLIGHT DECK TRIM VALVE ILLUMINATED ON NR 2 CABIN ZONE TEMP CONTR. ACCOMPLISHED ZONE TEMP CONTROLLER (BITE) PER AMM 21 61 00. GRD VERIFICATION SUCCESSFUL.