Narrative:

We were extended upwind after a touch and go on runway xx; we proceeded to turn crosswind at traffic pattern altitude then we made the turn to downwind. After making our turn on the downwind aircraft Y was wings level in crosswind within 30 ft after being instructed to fly west bound after departing runway xx behind us. I had to make an evasive correction and descended immediately to avoid the cessna flying toward us at the same altitude. I believe that this occurred due to either a lack of understanding of the instruction given to the pilot of the cessna or a failure to maintain situational awareness by ignoring radio calls from tower. The pilot of the cessna responded to tower after about 3 or 4 calls.

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Original NASA ASRS Text

Title: GA flight instructor reported a near-mid-air-collision in the pattern when another pilot did not follow tower instructions.

Narrative: We were extended upwind after a touch and go on Runway XX; we proceeded to turn crosswind at traffic pattern altitude then we made the turn to downwind. After making our turn on the downwind Aircraft Y was wings level in crosswind within 30 ft after being instructed to fly west bound after departing Runway XX behind us. I had to make an evasive correction and descended immediately to avoid the Cessna flying toward us at the same altitude. I believe that this occurred due to either a lack of understanding of the instruction given to the pilot of the Cessna or a failure to maintain situational awareness by ignoring radio calls from tower. The pilot of the Cessna responded to tower after about 3 or 4 calls.

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.