Narrative:

I was with a student in a cessna 172 on final. The student was flying. Passing approximately 400 feet; I saw off to our left; another cessna 172 turning from base to our final approach path. We were close enough to read the tail number. I told tower about this and that we were going around. Tower told that other 172 that they were explicitly instructed to follow behind us and land number two. I took controls from my student and went around while performing an evasive turn to the right to avoid the other aircraft. We landed without incident. My student and I discussed the importance of looking around; in particular at non-towered airports. I had also been demonstrating the unique features of the GPS system in our aircraft that gives traffic alerts. It warned us successfully at the exact moment I spotted the aircraft.

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Original NASA ASRS Text

Title: Flight instructor from one aircraft and the student pilot from the other aircraft reported a near midair collision in the traffic pattern.

Narrative: I was with a student in a Cessna 172 on final. The student was flying. Passing approximately 400 feet; I saw off to our left; another Cessna 172 turning from base to our final approach path. We were close enough to read the tail number. I told tower about this and that we were going around. Tower told that other 172 that they were explicitly instructed to follow behind us and land number two. I took controls from my student and went around while performing an evasive turn to the right to avoid the other aircraft. We landed without incident. My student and I discussed the importance of looking around; in particular at non-towered airports. I had also been demonstrating the unique features of the GPS system in our aircraft that gives traffic alerts. It warned us successfully at the exact moment I spotted the aircraft.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.