As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHORTLY AFTER TAKEOFF THE LT EXT LIGHT AND RT EXT LIGHTS CIRCUIT BREAKERS POPPED AND THE ODOR OF ELECTRICAL SMOKE WAS NOTICED. T/S SYS. FOUND PULSE LIGHT CONTROL UNIT TO HAVE FAILED DUE TO EXPOSURE TO WATER. REMOVED AND REPLACED CONTROL UNIT WITH MODIFIED UNIT. OPS CHECK OF LANDING LIGHTS AND PULSE LIGHT SYS, GOOD AT THIS TIME. IAW MM TASK 33-300.