As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT FMC FAILED FOR 15 SECONDS AND THEN RESTORED. GROUNDED - YES. REMOVED AND REINSTALLED #1 FMCS COMPUTER FOR TROUBLE SHOOTING REF B737-900 AMM 34-61-02. VERIFIED NO FAULTS FOUND. REMOVED AND REINSTALLED FMC #2 FOR T/S PER B737-900 FIM 34-61 TASK 836 NO FAULT FOUND.