As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON SHORT FINAL APP TO SEA BOTH FMC WENT BLANK BOTH ACARS RESET CAPTAINS CLOCK WENT BLANK. GROUNDED - YES. LEFT HAND FMC LOGGED 'PGM FAULT' LAST LEG, NO OTHER FAULTS LOGGED. ACCOMP B737-900 FIM 34-61 TASK 807, CKS GOOD. BOTH FMC'S OPS CK NML PER B737-900 AMM 34-61-00. GND VERIFICATION SUCCESSFUL. CLOCK CKS GOOD REF AMM 31-25-00. ACARS CKS GOOD REF AMM 23-27-00.