As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AFTER DEPARTURE, RIGHT ENGINE FIRE WARNING ON. ENGINE SHUTDOWN AND AIRCRAFT RETURNED. NOTHING FOUND. TWO DAYS LATER DURING TAXI, LIGHT ON AGAIN. COWLINGS REMOVED ONE AT A TIME AND LOWER ENGINE PROBE WAS FOUND SHORTING TO THE METAL COVERING OF AN ENGINE OIL LINE.