As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AUTOLOCK ON FLIGHT DECK DOOR MALFUNCTIONED ON TAKE OFF ROLL @ APPROX. 60 KIAS DOOR OPENED. TAKE OFF WAS ABORTED. (FLIGHTDECK SECURITY DOOR - AUTOMATIC LOCKING SYSTEM). REMOVED FROM SERVICE. PERFORMED OPS CHECK OF COCKPIT DOOR PANELS IAW E175 AMM 52-51-02-710-801-A. OPS CHECK GOOD. NO HISTORY FOUND. CLEAR DMI. RETURNED TO SERVICE.