What was found
(CAN) DURING TAKE-OFF ROLL, #1 ENGINE EEC REVERTED TO MANUAL. THE CREW ELECTED TO ABORT THE TAKE-OFF. TROUBLESHOOTING IS ONGOING. PRATT AND WHITNEY WILL INVESTIGATE TO ESTABLISH ROOT CAUSE AND PROVIDE INFORMATION TO TRANSPORT CANADA THROUGH SUBSEQUENT SERVICE DIFFICULTY REVIEW MEETING AND SUPPORTING DOCUMENTS OR OTHER AGREED UPON COMMUNICATIONS. (TC# 20190809012)