Small Aircraft; Low Wing; 1 Eng; Retractable Gear
Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 20.0
Distraction; Situational Awareness
ATC Issue All Types; Conflict Ground Conflict; Less Severe; Deviation / Discrepancy - Procedural Clearance; Ground Incursion Runway
Air Traffic Control Issued Advisory / Alert; Air Traffic Control Issued New Clearance
Airport; Human Factors; Procedure
Aircraft X was cleared for takeoff and crossed the holdline; with a vehicle on the runway.I had called the departure controller for 2 releases which I received. I cleared the first for takeoff when TRACON called and canceled the release on the 2nd aircraft. After the 1st aircraft departed I approved Airport Operations [Ground Vehicle] on the runway for inspection. I also told [Aircraft X] to expect departure in 3 minutes. About 2 minutes later the Departure controller called back and released [Aircraft X] for departure. I then cleared [Aircraft X] for takeoff on RWY 16R. For some reason something seemed odd and as I noticed [Ground Vehicle] still on the runway almost at the end. [Ground Vehicle] was on centerline turning off the runway at an intersection; and calling clear of the runway. I stopped [Aircraft X] just after he passed holdline. Once [Ground Vehicle] completely cleared (about 10 seconds) I cleared [Aircraft X] for takeoff again.My Runway 'Closed' placard was in place where it should have been. I was expecting it to take longer for the departure sector to call back; and was more focused on getting [Aircraft X] departed. My scan was effective but needed to have been done before clearing aircraft for takeoff.Scan before you clear.
A Controller cleared an aircraft for takeoff with a vehicle on the runway. The Controller noticed the vehicle was still on the runway and instructed the aircraft to hold but the aircraft had crossed the hold line.