As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE IN FLIGHT AND OPERATING UNDER MEL 34-36J WITH FMC SWITCH "BOTH ON R", THE RIGHT FMC FAILED. VTK WAS DISPLAYED AND NAV INFORMATION WAS LOST ON BOTH NAV DISPLAYS. AFTER 2-3 MINUTES NORMAL OPERATION RESUMED. GROUNDED - YES. ACCOMPLISHED B737-900 FIM 34-61 TASK 836. GROUND VERIFICATION PASS. RH FMC O/C FOR SERVICE.