Small Aircraft; Low Wing; 1 Eng; Fixed Gear
Flight Crew Multiengine; Flight Crew Commercial; Flight Crew Flight Instructor; Flight Crew Instrument
Flight Crew Last 90 Days 50; Flight Crew Total 439; Flight Crew Type 365
Workload; Time Pressure; Distraction; Situational Awareness
Conflict NMAC; Deviation - Altitude Excursion From Assigned Altitude
Flight Crew Took Evasive Action
Human Factors; Procedure
I was working with a student on an instrument lesson; and on our way back into ZZZ we were on a practice approach; awaiting to report my position as I approached the waypoint. My student was flying an approach and I noticed on our traffic page there was an aircraft turning what I believed to look like about a 5 mile base. I went on high alert at this point and took controls from my student. I then see them start to turn final and they start to descend very quickly on top of us. I then radio Tower asking about the airplane; and directly after that the other aircraft immediately turned off course and stated they would do a 360 for spacing. Fortunately no collision occurred but they got within about 20 feet of us; before taking action. I was ready to dive down if the scenario were to continue to escalate; but felt the need to make a report so that this could potentially be avoided in the future.
Flight Instructor providing instruction reported taking evasive action to avoid collision with another aircraft turning base leg while on final approach.