As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INTERMITTENT ILLUMINATION OF "SINGLE FMC OPERATION" ON TAXI IN. GROUNDED - YES. DID FMC BITE REF FIM 34-61 TASK 801. ON FAULT REVIEW BOTH FMC SHOWED SEVERAL LT MMR FAULTS. INPUTTING 300 SHOWED LOC DEV RATE. TROUBLESHOT REF FIM 34-31 TASK 801. NO FAULTS NOTED. ON FAULT REVIEW RT FMC SHOWED PGM FAULT ON G. PERFORMED FIM 34-61 TASK 807. NO FAULTS NOTED.