As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
#1 FMC FROZEN ON ACARS PAGE. NO FUNCTION BUTTONS WORK. GROUNDED - YES. OMF SHOWS NO ASSOCIATED PRESENT LEG OR EXISTING FAULTS. FAULT HISTORY SHOWS FC 34-69001 / MORE THAN ONE SYS HAS NO IMPUT FROM FMC-1. OPENED FMCS COMPUTER & MCDU CB, CLOSED CB'S. NO ACTIVE FAULTS PRESENT. REF IFIM 34-61-00-810-836.