As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FLIGHT, DISPATCH REPORTED THE EMERGENCY LOCATOR TRANSMITTER WAS ACTIVE. NO INDICATIONS IN THE COCKPIT. AIRCRAFT WAS GROUNDED. TROUBLESHOOTING DISCOVERED A FAULTY ELT ON A DOOR EVACUATION SLIDE. REMOVED AND REPLACED L1 DOOR SLIDE AND R4 DOOR SLIDE OPERATIONAL CHECKED GOOD.