As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LT & RT FMC'S NAV DATA OUT-OF-DATE. ACFT GROUNDED. CONFIRMED FAULT, AFTER UPDATING LT FMC WITH PDL, IT WILL NOT CROSS LOAD TO THE RT FMC. FOUND DEFECTIVE RT FMC COMPUTER. REPLACED RT FMC COMPUTER REF AMM TASK 34-61-02, OPS CK NORMAL. ACCOMPLISHED FMCS PERFORMANCE FACTORS ADJUSTMENT REF AMM TASK 34-61-00-800-801.