Service difficulty report · Warning System · Boeing 737990ER

Difficulty date
May 5, 2019
Submitted
May 7, 2019
Operation
Air carrier
Aircraft
N487AS
Make and model
Boeing 737990ER
Aircraft serial
44108
Aircraft time
14,307 hours, 4,605 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

A/T ARM LIGHT IS INOP. GROUNDED - YES. A/T ARM LIGHT ILLUMINATES FOR BITE TEST ON MCP. A/T BITE TEST DONE WITH NO FAULTS AND NO IN FLIGHT FAULTS REF FIM 22-31 TASK 801.