What was found
(CAN) DURING TAKEOFF ROLL, AT 85% N1, ENG VIBRATION LIGHT CAME ON. THE CREW ELECTED TO ABORT TAKEOFF AROUND 80 KNOTS. THE CREW TRIED IT AGAIN & LIGHT CONTINUED TO ILLUMINATE AT APPROX 85% N1. NO INJURIES REPORTED. TROUBLESHOOTING ONGOING. MFG WILL INVESTIGATE TO ESTABLISH ROOT CAUSE & PROVIDE INFORMATION THROUGH SUBSEQUENT SERVICE DIFFICULTY REVIEW MEETING & SUPPORTING DOCUMENTS OR OTHER AGREED UPON COMMUNICATIONS.