As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT FMC FAILED. VTK FLAG AND MAP FLAG ON F/O SIDE. GROUNDED-YES. PERFORMED BITE OF FMC NR 1 AND NR 2, REF B737-900 AMM 34-61 TASK 801. FOUND NR 2 FMC HARDWARE FAULTS ETHERNET AND PROCESSOR. REPLACED NR 2 FMC WITH SERVICEABLE FROM STOCK, REF AMM 34-61-02-000-801/400-801. ALL TEST PASS FAULT NO LONGER EXISTS.