SDR ASAA2017100122089

Service difficulty report · Fmc · Boeing 737890

Difficulty date: October 1, 2017
Submitted: October 2, 2017
Operation: Air carrier
Aircraft: N565AS
Make and model: Boeing 737890
Aircraft serial: 35181
Aircraft time: 41,632 hours, 12,591 cycles
System (JASC): 3460 · Flight Management Computing Hardware System
Part: Fmc
Condition: Malfunctioned
Location: First Officer'S
Stage of operation: TX
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

FIRST OFFICER'S FMC VTK & ASSOCIATED FMC LIGHT CYCLES ON & OFF AT INTERVALS OF ABOUT 10 SECONDS. STARTED AFTER LANDING. ACFT GROUNDED. CONFIRMED. NO HISTORY FOR 60 DAYS. PULLED & RESET THE NR 1 & 2 FMCS COMPUTERS AND MCDU CIRCUIT BREAKERS. OPS CHECKED BOTH FMCS, CHECKED GOOD IAW MM 34-61-00.