Narrative:

Both aircraft [involved in the near midair collision] were training. One was in the VFR traffic pattern and the other was flying a straight in ILS approach from tfd VOR. Both were making radio position calls in the blind. Even though calls were being made; some were not being heard because of the instruction being conducted. The point where the VFR traffic pattern base leg meets final and merges with the ILS final is a hot spot and potentially dangerous situation. In this case neither aircraft noticed the other until a [near] mid-air collision. The shadow of the ILS aircraft was noticed by the traffic pattern aircraft and upon looking up; the ILS aircraft was approximately 50 ft directly above the traffic pattern aircraft which turned to the right to gain separation. Both aircraft were on frequency and reporting positions. We were very fortunate there was not a mid-air. This brought to my attention that I should limit instruction and be more vigilant in this situation. This airport is uncontrolled and has heavy instrument training and VFR traffic so there is an unusually high potential for a mid-air.

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Original NASA ASRS Text

Title: Lancair 360 instructor and student pilot reported a NMAC on final approach to CGZ airport.

Narrative: Both aircraft [involved in the NMAC] were training. One was in the VFR traffic pattern and the other was flying a straight in ILS approach from TFD VOR. Both were making radio position calls in the blind. Even though calls were being made; some were not being heard because of the instruction being conducted. The point where the VFR traffic pattern base leg meets final and merges with the ILS final is a hot spot and potentially dangerous situation. In this case neither aircraft noticed the other until a [near] mid-air collision. The shadow of the ILS aircraft was noticed by the traffic pattern aircraft and upon looking up; the ILS aircraft was approximately 50 ft directly above the traffic pattern aircraft which turned to the right to gain separation. Both aircraft were on frequency and reporting positions. We were very fortunate there was not a mid-air. This brought to my attention that I should limit instruction and be more vigilant in this situation. This airport is uncontrolled and has heavy instrument training and VFR traffic so there is an unusually high potential for a mid-air.

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.