SDR ASAA2018082865937

Service difficulty report · Warning Message · Boeing 737990ER

Difficulty date: August 26, 2018
Submitted: August 28, 2018
Operation: Air carrier
Aircraft: N472AS
Make and model: Boeing 737990ER
Aircraft serial: 60580
Aircraft time: 13,698 hours, 4,519 cycles
System (JASC): 3460 · Flight Management Computing Hardware System
Part: Warning Message
Condition: False Activation
Location: Fmc
Stage of operation: CR
How discovered: O
Nature of condition: N
Precautionary procedure: O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

DURING CRUISE, SIGNS FMC MESSAGE WITH VTK ON THE FIRST OFFICER`S NAV DISPLAY, MESSAGE AND DISPLAY SELF-CLEARED BEFORE RUNNING QRH PROCEDURE. ACFT GROUNDED. PERFORMED FIM 34-61-00-810-836 ON THE FIRST OFFICER`S FMC, OPS NORMAL, NO DEFECTS NOTED, RESET TWO CIRCUIT BREAKERS.