Date: 201508
Local time of day: 1201-1800
Location: JNU.Tower, AK
Flight conditions: VMC
Light: Daylight
Aircraft: Small Aircraft; High Wing; 1 Eng; Fixed Gear
Operator: Air Taxi
Operating under: Part 91
Flight plan: VFR
Mission: Passenger
Flight phase: Initial Approach
Airspace: Class D JNU
ATC / advisory: Tower JNU
Second aircraft: B737 Undifferentiated or Other Model
Reporter organization: Government
Reporter function: Local
Reporter qualification: Air Traffic Control Fully Certified
Human factors: Communication Breakdown; Situational Awareness
Anomaly: ATC Issue All Types; Conflict Airborne Conflict; Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural Clearance
Detector: Person Air Traffic Control
When detected: In-flight
Result: Air Traffic Control Issued New Clearance; Air Traffic Control Issued Advisory / Alert; Air Traffic Control Separated Traffic
Contributing factors: Environment - Non Weather Related; Procedure; Human Factors
Primary problem: Human Factors

Narrative: I was conducting training as I was working Local 1 position. Aircraft X reported 3.5 miles outside the Class Delta airspace on initial call. He was told by the trainee to make a right base for the runway and to expect to be number 3 to the field. I immediately overkeyed and told the pilot to be number 2 following a B-737 on a 4 mile straight in to the runway. Aircraft X was 2 miles closer to the field than a Cessna behind him. I told Aircraft X to make a left turn into the downwind to follow a B-737 (THREE times). The pilot refused to do what I instructed him to do and gave himself a 360 degree  turn on a 2 mile right base. He put himself in an unsafe situation with inbound traffic behind him; instead of staying in a smooth flow as I told him to. The pilot NEVER said 'unable' or gave a reason as to why he wanted a 360 turn. The pilot was also told to make a left turn to enter the downwind 3 miles away from the field and should have complied. Aircraft X delayed other aircraft as he was arguing and swearing on the frequency. The pilot has been told numerous times in the past to comply with ATC instructions and I believe he has a tendency to ignore the controller just to prove that he can do what he wants. I was told by my supervisor that I should have been more authoritative. I listened to the tapes and found that because the pilot was not complying with instructions; that I was speaking more plain English to get him to comply. I believe I stepped in and over-keyed the trainee with plenty of extra time for the pilot to comply with my instructions (three whole flying miles). This pilot put himself in an unsafe situation and did not comply with any control instruction.Aircraft X called inbound on the edge of the Class Delta and would not have had enough room to turn around before entering the airspace if we had not cleared him in. The pilot should have called inbound at the appropriate landmark. The pilot did not comply with instructions given by ATC and should have listened to the controller instead of putting himself in an unsafe situation. The pilot also put himself in the way of other aircraft for no reason.




Synopsis: Aircraft entering traffic pattern refused to comply with ATC instructions. Pilot conducted their own maneuvers in the pattern not issued by ATC. Pilot argued and used inappropriate language on the frequency.