As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS PARKED ON THE RAMP AT NIGHT AND SOME TIME DURING THE NIGHT THE ELT STARTED TO TRANSMIT. THE FOLLOWING MORNING, IT WAS RESET AND A NEW BATTERY WAS INSTALLED. TWO DAYS LATER, THE SAME CONDITION WAS EXPERIENCED. THE ELT WAS REPLACED.