As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEA - FLASH OF LIGHT AND ACRID SMELL IN COCKPIT ON SHORT FINAL. LIGHT SEEMED TO COME FROM NR 1 SIDE AFT AROUND BREAKER PANEL. INSPECTED UNDER CIRCUIT BREAKER PANELS, GROUND RAN AIRCRAFT, CHECKED AC AND DC ELECTRICAL SYSTEMS WHILE RUNNING. NO FAULT FOUND. OK FOR CONTINUED SERVICE. (X)