As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT 17,000 FEET IN CLIMB, NUMBER 2 FIRE HANDLE FLICKERED INTERMITTENTLY AND EMITTED AN ARCING SOUND. SEEMED TO FLICKER MORE WITH THROTTLE MOVEMENT. FOUND M337 FIRE LOOP DETECTOR SHORTED INTERNALLY. REPLACED DETECTOR AND CORRODED CONNECTOR. CHECKS OK.