As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON ROTATION ICE CAUTION FOLLOWED BY MASTER CAUTION LEFT ENGINE FIRE FOLLOWED BY ASSORTED OTHER MESSAGES. DECLARED EMERGENCY AND LANDED. UPON INVESTIGATION FOUND DCU'S BAD. REMOVED AND REPLACED DCU 1 AND DCU2 IAW AMM 31-41-00. PERFORMED OPS CHECK GOOD.