Date: 202008
Local time of day: 0601-1200
Location: DED.Airport, FL
Flight conditions: VMC
Weather elements / visibility: 10
Light: Daylight
Aircraft: Small Aircraft
Operator: FBO
Operating under: Part 91
Flight plan: None
Mission: Training
Flight phase: Initial Approach
Airspace: Class E ZMA
ATC / advisory: UNICOM DED
Second aircraft: Small Aircraft
Reporter organization: FBO
Reporter function: Instructor
Reporter qualification: Flight Crew Multiengine; Flight Crew Instrument; Flight Crew Flight Instructor; Flight Crew Commercial
Human factors: Confusion; Time Pressure; Situational Awareness; Distraction
Anomaly: Conflict NMAC
Detector: Person Flight Crew
When detected: In-flight
Result: Flight Crew Took Evasive Action
Contributing factors: Environment - Non Weather Related; Human Factors
Primary problem: Human Factors

Narrative: I was the instructor on a training flight with a student pilot training for their private pilot certificate. We were in Aircraft X and were practicing airport entries and landings. We departed Daytona Beach's airspace (Class C) and we entered Deland (Class E/G). The SP [Student Pilot] was doing a very good job spotting the runway; finding the traffic; entering correctly; and made all of the necessary position reports. We were using runway 23 at Deland; and we did a full stop taxi back for closed traffic since there was a lot of people in the pattern and sky diving going on. Before we took off we made a report on the CTAF and visually verified there were no planes on final or base. While the SP was climbing out we were both scanning for the traffic; and I noticed there were two planes on the downwind EXTREMELY close together. I made a radio call stating that we were going to extend our upwind to give the planes on downwind space since they were very close together and I asked if they could see each other (I was concerned the plane behind; could not actually see the plane in front of them on the downwind). So we extend our upwind until we climb to about traffic pattern altitude and then make our crosswind turn (and made a radio call). On the crosswind to downwind turn I spotted traffic about 5 miles or so east; and I was watching to see if they were just leaving Daytona's Charlie or if they were entering into Deland. About 2 seconds later we get abeam our point of intended landing; and I'm walking the student through pulling power; adding flaps; and starting our descent. As she does that I look to my right to spot that traffic that was about 5 miles off our wingtip and I see another aircraft directly below us crossing diagonally underneath of us- I would say about 100 feet below us (range was about 100-300 feet below); and we were descending. I immediately point out the traffic to the SP and tell them to level off and start flying away; and I made multiple calls on the radio attempting to contact the plane but they made inaccurate to slim number of calls on frequency and ignored my numerous questions on frequency asking where they were going. We were so close that I could read the tail number. I had made 1 last call on frequency saying that we were departing. And then Aircraft Y reported that they were on final over the frequency. After the flight I was able to get more details from flight aware; but I have never been that close to having a mid-air collision.




Synopsis: Instructor reported a NMAC while in the traffic pattern with a student.