Skyhawk 172/Cutlass 172
Flight Crew Commercial; Flight Crew Multiengine; Flight Crew Instrument; Flight Crew Flight Instructor
Flight Crew Last 90 Days 58.3; Flight Crew Total 470; Flight Crew Type 35
Communication Breakdown; Situational Awareness
Conflict NMAC; Flight Deck / Cabin / Aircraft Event Illness / Injury
Flight Crew Took Evasive Action
Human Factors
I was giving flight instruction. A few minutes before reporting 10 miles west from ZZZ my student told me that he was feeling motion sickness and decided to give me the flight controls. I took the flight controls and the communications. I reported 10 miles west of the airport and the Controller told me to report and enter the right base for Runway XX. I misunderstood the communications and thought that he asked me to report three miles west of the airport. Before reporting three miles from the airport I noticed that there was an aircraft flying closer to me but at a lower altitude. After that the Controller repeated the original instructions. At that moment I realized that I misunderstood his instructions. Then he asked me just to enter the pattern following that traffic and land. When I landed and exit from the runway; ATC asked me to call Tower.
GA Flight Instructor with a student reported an NMAC during a visual approach after mistaking ATC instructions. The instructor was at the controls after the student experienced motion sickness.