Narrative:

I was on the ILS runway xxl approach. At about 1000 AGL; the tower informed us that there was helicopters practicing in the pattern for runway yy. I saw the helicopter over the approach end of runway yy at that time. As we flew the ILS; at about 250 AGL; I looked up again and out of the corner of my eye; the helicopter was approaching our flight path perpendicular to ours; at the same altitude; and what looked like a converging flight path to ours; with less than 400 feet of separation. At the same time as I looked up and say the helicopter; the aircraft's traffic alert system started sounding for traffic less than one mile. Based off of the size of the helicopter; location of its position lights; and the ability to make out the black airframe at night; it appeared the aircraft was less than 400 feet away horizontally. I immediately executed a go-around; slightly side stepped to the right and flew runway headed as assigned by the control tower after informing them of the go-around. Upon completion of executing a visual approach back into runway xxl; was instructed by the tower to call the supervisor on duty. After shutting down I did so. Tower supervisor asked the reason for the go-around; speculated that the helicopter was well over a mile away; and informed me; while it was within my right to execute a go-around that it was ill advised due to having been informed of the helicopters activities along with traffic departing and landing runway xxr. It is my professional opinion that no-one; including pilots; controllers; or instructors should discourage pilots from executing go-arounds if the PIC deems it necessary for safety of flight. Additional inactions of the controller was to notice seemingly loss of separation between converging aircraft including one that was on an instrument flight plan conducting an instrument approach with scattered fog and mist along final corridor.

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Original NASA ASRS Text

Title: A DA-40 instructor pilot reported executing a go-around on short final after a military helicopter on an adjacent runway converged on his aircraft. ATC questioned the need for a go-around; but the reporter felt ATC should not question a pilot's go-around decision based on safety concerns.

Narrative: I was on the ILS Runway XXL approach. At about 1000 AGL; the tower informed us that there was Helicopters practicing in the pattern for Runway YY. I saw the helicopter over the approach end of Runway YY at that time. As we flew the ILS; at about 250 AGL; I looked up again and out of the corner of my eye; the helicopter was approaching our flight path perpendicular to ours; at the same altitude; and what looked like a converging flight path to ours; with less than 400 feet of separation. At the same time as I looked up and say the helicopter; the aircraft's traffic alert system started sounding for traffic less than one mile. Based off of the size of the helicopter; location of its position lights; and the ability to make out the black airframe at night; it appeared the aircraft was less than 400 feet away horizontally. I immediately executed a go-around; slightly side stepped to the right and flew runway headed as assigned by the control tower after informing them of the go-around. Upon completion of executing a visual approach back into Runway XXL; was instructed by the tower to call the supervisor on duty. After shutting down I did so. Tower supervisor asked the reason for the go-around; speculated that the helicopter was well over a mile away; and informed me; while it was within my right to execute a go-around that it was ill advised due to having been informed of the helicopters activities along with traffic departing and landing Runway XXR. It is my professional opinion that no-one; including pilots; controllers; or instructors should discourage pilots from executing go-arounds if the PIC deems it necessary for safety of flight. Additional inactions of the controller was to notice seemingly loss of separation between converging aircraft including one that was on an instrument flight plan conducting an instrument approach with scattered fog and mist along final corridor.

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.