Flight Crew Multiengine; Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 10; Flight Crew Total 1200; Flight Crew Type 50
Situational Awareness
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Rejected Takeoff
Human Factors
During the takeoff roll at approximately 100kts my seat; FO (First Officer) seat; slid all the way back. The Captain called for the reject and we performed a rejected takeoff. FO seat slid back beyond ability to reach controls.Seat not secured in place properly.It was an abnormal situation; both pilots deemed it unsafe for flight; and rejecting the takeoff was the safest action.
[Report narrative contained no additional information]
EMB145 flight crew reported rejected takeoff when First Officer's seat slid back.