Small Aircraft
Air Traffic Control Developmental
Air Traffic Control Time Certified In Pos 1 (yrs) 9
Confusion; Situational Awareness
ATC Issue All Types; Conflict NMAC
Air Traffic Control Issued New Clearance; Flight Crew Took Evasive Action; Flight Crew Requested ATC Assistance / Clarification
Manuals; Human Factors; Procedure; Staffing; Company Policy
I witnessed the Supervisor; who was working Local Control; Ground Contol and the Operations Desk combined have what I would call a near mid air. He had Aircraft X in the right pattern for the runway. Aircraft Y ready for IFR departure at the same runway. What I witnessed was Aircraft Y turning to avoid Aircraft X on the upwind. I heard the Supervisor tell Aircraft X if able turn your crosswind now (he wasn't even at the departure end of the runway; maybe 4;500 ft. down the runway) He then told Aircraft Y [that] Aircraft X was turning crosswind. Aircraft Y then corrected back and continued straight out. The Supervisor told Aircraft Y to start his 315 heading and contact departure. Aircraft Y did not turn until 2 1/2 miles upwind which at that point I had Aircraft Z on the upwind off an adjacent runway.I listened to the tapes because I initially thought Aircraft Y was departing a different runway however after reviewing the tapes he was cleared for takeoff on the same runway as Aircraft X. Aircraft X must have just touched down for his touch and go when he cleared Aircraft Y for takeoff. There was obviously no runway separation which is 6;000 ft. or turned to avoid when Aircraft Y started his takeoff roll. I also heard on the tapes what sounded like Aircraft Y stating he was deviating to avoid. And then later state 'I'm correcting back'. I tried to see the replay but wasn't able to log into the system. The reason I'm reporting this a few days later is because I wanted to review the tapes and was trying to get into the replay system to see if additional separation was lost with Aircraft Z and Aircraft Y after my days off.
Controller reported the Local Controller cleared an aircraft for takeoff with insufficient spacing behind a previous slower departure which resulted in a NMAC.