Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 15
Situational Awareness; Distraction; Confusion
Conflict Airborne Conflict; Deviation - Track / Heading All Types; Deviation / Discrepancy - Procedural Clearance
Air Traffic Control Issued New Clearance; Air Traffic Control Separated Traffic
Airspace Structure; Human Factors; Procedure
While working the Local Control (LC) North position I had a student pilot call inbound 8 [miles] west at 4500 MSL. I observed two aircraft in close proximity 8 [miles] west of DVT at the same altitude; I asked the one talking to ident. I observed the ident and informed the pilot of the other aircraft doing 360s on an 8 mile final not talking to anyone. The problem is we have a lot of aircraft in that area and the pilot will just go out to the west and do 360s without telling anyone. We have all seen many close calls and we have informed management of this numerous times. It is getting to be a huge safety problem. We need a class delta extension to make sure pilot call us when they are on final more than just 4.5 miles. We are here for the safety of the flying public; let's make sure that we do all we can to make this a safe place.
While working many aircraft; Aircraft X called inbound was initially told to hold outside the airspace. After a few minutes was given straight in runway 7R and report a 4 mile final. There was also another on a final behind him. I then observed someone doing a 360 on a 4 mile final I asked Aircraft X if that was him he replied yes. I immediately turned him south bound and turned the other aircraft north to avoid a collision. This is a huge problem in DVT pilots are doing 360's without asking or even telling the tower. I had been telling the (FLM) Front Line Manager for at least 20 minutes of all the pilot problems I was having; he was listening to me. Then as it got busier he went on break rather than opening up a Cab Coordinator position to help with the flow of traffic.We need the FLMs to help us with pilot education so the frustration doesn't get this high. We also need an airspace extension out to the west so we can have these guys under control.
DVT Tower Controller report of aircraft doing 360 degree turns outside of the Class D airspace. Controllers request an extension to the Class D in this area due to close calls with other traffic inbound to DVT.