Narrative:

While waiting behind a preceding aircraft at the departure end of runway 35; my student positioned the aircraft to have a view of the final approach and left and right base legs to runway 35. When the preceding aircraft took the runway for departure; the student taxied up to the hold short line to observe the departing aircraft. Due to the high wing configuration of the training aircraft; we were no longer able to see the left base portion of the traffic pattern. The preceding aircraft aborted his take off and there was a delay in clearing the runway. Once that aircraft was clear of the runway; both the student and myself visually cleared the final approach course and the student announced his intention to depart on the CTAF. As the student positioned the aircraft on the runway; we heard a weak and broken radio call the only word we heard clearly was 'runway'; another look out the right side did not reveal any other aircraft; however the view was restricted by the right wing.almost immediately; a shadow passed over the aircraft and we observed an agricultural aircraft pass overhead conducting a go around. Other than the one transmission concerning 'runway'; there were no radio communications from the landing aircraft; but we understand that this is a common practice.contributing factors were:an uncontrolled airport.a student pilot who was unfamiliar with this uncontrolled airport and the agricultural aircraft that operate there.the delay created by the aircraft ahead aborting his takeoff.take-aways:had the aircraft been left as originally positioned until the preceding aircraft had cleared the runway; we would have been in a better position to see the approaching agricultural aircraft as he entered on a close-in left base.having moved into a position that restricted the view of the base leg before the aircraft ahead aborted; we should have done a slow 360 degree turn to recheck those areas that were now obstructed by aircraft structure.finally; at the first hint of something wrong; that broken radio call 'runway'; we should have stopped right where we were and asked for a repeat. Just because it was weak and broken; does not mean that it wasn't another pilot on the taxiway behind us who was in a better position to see the aircraft turning base to final very close in.after returning to our home base the student was thoroughly debriefed and gave input into how we both could do better in the future.for my part; I will discuss this event with all my students so as to re-enforce safety practices. I will also insist that all students do a 360 turn to scan for traffic every time they depart an uncontrolled airport.

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Original NASA ASRS Text

Title: A flight instructor and a student reported a near miss at a non-towered airport.

Narrative: While waiting behind a preceding aircraft at the departure end of Runway 35; my student positioned the aircraft to have a view of the final approach and left and right base legs to Runway 35. When the preceding aircraft took the runway for departure; the student taxied up to the hold short line to observe the departing aircraft. Due to the high wing configuration of the training aircraft; we were no longer able to see the left base portion of the traffic pattern. The preceding aircraft aborted his take off and there was a delay in clearing the runway. Once that aircraft was clear of the runway; both the student and myself visually cleared the final approach course and the student announced his intention to depart on the CTAF. As the student positioned the aircraft on the runway; we heard a weak and broken radio call the only word we heard clearly was 'runway'; another look out the right side did not reveal any other aircraft; however the view was restricted by the right wing.Almost immediately; a shadow passed over the aircraft and we observed an agricultural aircraft pass overhead conducting a go around. Other than the one transmission concerning 'runway'; there were no radio communications from the landing aircraft; but we understand that this is a common practice.Contributing factors were:An uncontrolled airport.A student pilot who was unfamiliar with this uncontrolled airport and the agricultural aircraft that operate there.The delay created by the aircraft ahead aborting his takeoff.Take-aways:Had the aircraft been left as originally positioned until the preceding aircraft had cleared the runway; we would have been in a better position to see the approaching agricultural aircraft as he entered on a close-in left base.Having moved into a position that restricted the view of the base leg before the aircraft ahead aborted; we should have done a slow 360 degree turn to recheck those areas that were now obstructed by aircraft structure.Finally; at the first hint of something wrong; that broken radio call 'runway'; we should have stopped right where we were and asked for a repeat. Just because it was weak and broken; does not mean that it wasn't another pilot on the taxiway behind us who was in a better position to see the aircraft turning base to final very close in.After returning to our home base the student was thoroughly debriefed and gave input into how we both could do better in the future.For my part; I will discuss this event with all my students so as to re-enforce safety practices. I will also insist that all students do a 360 turn to scan for traffic every time they depart an uncontrolled airport.

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.