As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(VTK) FMC #1 FAILURE. AUTOMATICALLY FIXED ITSELF AFTER A MINUTE OR TWO, NO CORRECTIVE ACTIONS TAKEN. NO FURTHER PROBLEMS FOR REMAINDER OF FLIGHT. GROUNDED - YES. #1 FLIGHT MANAGEMENT COMPUTER SYSTEM CHECKS GOOD REF B737-900 AMM TASK 34-61-00-710-801.