As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED REJECTED TAKEOFF AT MKE USING RUNWAY 25L AT AN APPROXIMATE SPEED OF 115KTS. CREW RECEIVED A WARNING MESSAGE FROM THE SMOKE DETECTOR IN THE FROM LAVATORY. MAINTENANCE IS CURRENTLY INSPECTING AIRCRAFT. DEFERRED PER MEL 26-16-01 CAT C, M/FC CW. EMPTIED TRASH AND LOCKED DOOR. REMOVED AND REPLACED FWD LAV SMOKE DETECTOR IAW CRJ 900 AMM 26-16-01-000/400-802-A02-PSA. OPS CHECK GOOD. THIS CLEARS MEL.