Narrative:

On downwind in traffic pattern (stage check) at ZZZ; instructor pilot (ip) observed traffic on tis (traffic information service) display that appeared to be closing at a high rate from the rear. Ip attempted to visually acquire the target; but was unable. ATC warned the following aircraft Y that they were getting too close. While the ip's aircraft was cleared to land; pilot under instruction (pui) decided to extend downwind to give sufficient space for traffic that was on final; and was not concerned with traffic to his rear since he had the right of way. With the targets continuing to close on the tis; ip instructed pui to turn immediately. As pui turned base; ip acquired the target on downwind; passing an estimated 170 feet behind his aircraft; close enough to clearly read the registration aircraft Y. Ip continued flight without further incident. The instructor of aircraft Y proceeded to solo out his student on the next lap.keeping situational awareness (sa) is crucial to maintaining safety of flight; and using all available resources to maintaining sa. Ip explained that it does not matter if you had the right of way if you crash; so do what is necessary per 91.3.

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Original NASA ASRS Text

Title: Flight instructor reported an NMAC with another instructional aircraft in the traffic pattern.

Narrative: On downwind in traffic pattern (stage check) at ZZZ; Instructor Pilot (IP) observed traffic on TIS (Traffic Information Service) display that appeared to be closing at a high rate from the rear. IP attempted to visually acquire the target; but was unable. ATC warned the following Aircraft Y that they were getting too close. While the IP's aircraft was cleared to land; Pilot under Instruction (PUI) decided to extend downwind to give sufficient space for traffic that was on final; and was not concerned with traffic to his rear since he had the right of way. With the targets continuing to close on the TIS; IP instructed PUI to turn immediately. As PUI turned base; IP acquired the target on downwind; passing an estimated 170 feet behind his aircraft; close enough to clearly read the registration Aircraft Y. IP continued flight without further incident. The instructor of Aircraft Y proceeded to solo out his student on the next lap.Keeping Situational Awareness (SA) is crucial to maintaining safety of flight; and using all available resources to maintaining SA. IP explained that it does not matter if you had the right of way if you crash; so do what is necessary per 91.3.

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.