As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON DESCENT BRIEFLY GOT SINGLE FMC, SCRATCHPAD MESSAGE AND F/O'S MAP DISAPPEARED FOR DURATION OF FLIGHT. MAP DISPLAYED IN AMBER ON F/O'S MAP DISPLAY. GROUNDED - YES. ACCOMPLISHED BITE IAW B737-800 FIM 34-61 TASK 801. FOUND RESYNC MESSAGE IN RIGHT FMC. LEFT AND RIGHT FMC OPS CHECK GOOD IAW FIM 34-61 TASK 832.