As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FIRE #2 ENG CAUTION AND AUDIO ACTIVATED DURING HEAVY RAIN AND STAYED "ON". FOUND WATER ON JUNCTION OF #2 INBOARD FIRE DETECTOR CONNECTOR HARNESS. CLEANED AND DRIED OUT CONNECTOR. OPS CHECK GOOD ON GROUND AT THIS TIME. ALL WORK PERFORMED IAW REF. S92 WIRING SYSTEM MANUAL CHAPTER 26-11-00.