Narrative:

It was a relatively busy morning at buckeye. There were three other aircraft in the pattern; practicing simulated engine failures; slips to land and glide approaches. I was practicing traffic patterns and simulated engine failures/alternator warning light on/starter energized warning light on abnormal procedures. I was on final for runway 17; looking inside at my airspeed indicator and looking below me for my aiming point on the runway. I had made the crosswind; downwind; base and final calls on the radio. Our tcad was on and operative; we had received multiple proximity warnings from other aircraft. At approximately 400 AGL; a helicopter passed overhead at a distance of 100 ft from my left to right. Tcad did not warn me of the helicopter. I was not looking for traffic above me; I was aware of every other aircraft in the pattern that had made position calls. The helicopter had not made any calls on the CTAF frequency. I saw something moving in the top left corner of my eye and I saw him just in time before he disappeared from my sight. The backseat passenger saw the helicopter at the same time as I. My instructor never saw the helicopter. My instructor proceeded to make a call over the radio; asking who and where the helicopter was. The helicopter called to say he was leaving the area.I proceeded to land. I decided quickly not to go around. The helicopter was not on the radio and I did not know what his intentions were. He could fly straight into the pattern and I no longer had the helicopter in sight when he passed overhead. Because of his position above me; I was unable to visually verify his actions. If I had decided to go around and the helicopter would have turned left; we would have gotten even closer; potentially flying into each other.

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Original NASA ASRS Text

Title: Student pilot reported a NMAC with a helicopter on short final at BXK. The helicopter was flying at 90 degrees to the final approach course and departing the pattern without making position reports.

Narrative: It was a relatively busy morning at Buckeye. There were three other aircraft in the pattern; practicing simulated engine failures; slips to land and glide approaches. I was practicing traffic patterns and simulated engine failures/alternator warning light on/starter energized warning light on abnormal procedures. I was on final for runway 17; looking inside at my airspeed indicator and looking below me for my aiming point on the runway. I had made the crosswind; downwind; base and final calls on the radio. Our TCAD was on and operative; we had received multiple proximity warnings from other aircraft. At approximately 400 AGL; a helicopter passed overhead at a distance of 100 ft from my left to right. TCAD did not warn me of the helicopter. I was not looking for traffic above me; I was aware of every other aircraft in the pattern that had made position calls. The helicopter had not made any calls on the CTAF frequency. I saw something moving in the top left corner of my eye and I saw him just in time before he disappeared from my sight. The backseat passenger saw the helicopter at the same time as I. My instructor never saw the helicopter. My instructor proceeded to make a call over the radio; asking who and where the helicopter was. The helicopter called to say he was leaving the area.I proceeded to land. I decided quickly not to go around. The helicopter was not on the radio and I did not know what his intentions were. He could fly straight into the pattern and I no longer had the helicopter in sight when he passed overhead. Because of his position above me; I was unable to visually verify his actions. If I had decided to go around and the helicopter would have turned left; we would have gotten even closer; potentially flying into each other.

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.