As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING OVERNIGHT MAINTENANCE ACTIVITIES AT IND, THE TAIL CONE WAS INADVERTENTLY JETTISONED. WHEN THE TAIL CONE SEPARATED FROM THE FUSELAGE THE EMERGENCY EVACUATION SLIDE DID NOT DEPLOY. NO OBVIOUS REASON FOR FAILURE TO DEPLOY WAS NOTED DURING A VISUAL CHECK BY MAINTENANCE AT IND. THE AIRCRAFT WAS FERRIED TO MSP WHERE THE EVACUATION SLIDE AND THE TAIL CONE WERE REPLACED. THE AIRCRAFT HAS RETURNED TO SERVICE.