SDR ASAA201804254367

Service difficulty report · Fmc · Boeing 737890

Difficulty date: April 24, 2018
Submitted: April 25, 2018
Operation: Air carrier
Aircraft: N560AS
Make and model: Boeing 737890
Aircraft serial: 35179
Aircraft time: 44,449 hours, 13,389 cycles
System (JASC): 3460 · Flight Management Computing Hardware System
Part: Fmc
Condition: Malfunctioned
Stage of operation: CR
How discovered: O
Nature of condition: J
Precautionary procedure: O

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

What was found

DURING FLIGHT AT FL410, LOST BOTH FMC DISPLAYS VTK DISPLAYED ON CAPTAINS ND. MAP FLAG ALSO DISPLAYED ON CAPTAINS ND. AFTER APPROXIMATELY TWO MINUTES FMC'S RECOVERED AND DISPLAYS RETURNED TO NORMAL. ACFT GROUNDED. C/W FIM 34-61 TASK 804. FMC 1 & 2 BIT PASS REF PARA G. PULLED & RESET FOUR C/B'S, P18-2 A6, A7 P6-1 D15, D16. ACFT OK FOR SERVICE.