As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB MULTIPLE FALSE FIRE & OVERHEAT WARNINGS WERE RECEIVED, THERE WERE NO FIRE T HANDLE WARNING LIGHTS. DIVERTED, AND LANDING UNEVENTFUL. FOUND MASTER CAUTION SIX PACK LIGHT MODULE UNSECURE, PROVIDING ALTERNATE GND TO ILLUMINATE WARNING LIGHTS. SECURED & RESET M0DULE WARNING SYS IAW MCT DIRECTION IAW MM REF 33-11-00.