Narrative:

Departed helipad to a hospital for patient transport. Was monitoring approach and unicom; and squawking preassigned code. Approx 20NM south; I heard approach provide traffic advisory to another aircraft for 'helicopter 12 o'clock and 5 miles'. I do not recall the altitude call out from approach. The aircraft responded; 'helicopter in sight' and I immediately called approach and advised that I was the helicopter traffic at 2000 ft and I had the fixed wing traffic in sight. The fixed wing was at 2 o'clock and approximately 2500 ft. At the same time the medical crew noticed lights on the left side of the aircraft and I turned my attention to those lights and determined they were ground lights from local soccer field. When I turned to look for the fixed wing; it was approx 1 NM and no more than 500 ft above. I immediately started a descent to increase distance from the fixed wing. The fixed wing passed overhead and appeared to continue to the northeast. The crew in the cabin then announced that the fixed wing had done a 180 descending turn and was on our 6 o'clock with landing lights on. The crew kept the fixed wing in sight and provided advisories and was getting closer. It wasn't until the debrief at the end of the flight that the crew advised that they thought the fixed wing was getting dangerously close. To make our helicopter more visible I turned on all extra available external lighting; including the loading lights; side mounted scene lights; and all skid and searchlights. After turning on all the lights the fixed wing then made a right turn and the crew advised that the fixed wing was moving away from us. Continued flight for pickup. On return we debriefed the flight extensively with crew. The crew was upset and considered that the actions of the fixed wing put us in a dangerous near midair situation. Approach was contacted and an incident report was submitted.

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Original NASA ASRS Text

Title: A helicopter flying a VMC night flight was pursued by a fixed wing aircraft after the helicopter was reported as traffic to the fixed wing aircraft and both aircraft's pilots acknowledged one another.

Narrative: Departed helipad to a hospital for patient transport. Was monitoring Approach and Unicom; and squawking preassigned code. Approx 20NM south; I heard Approach provide traffic advisory to another aircraft for 'Helicopter 12 o'clock and 5 miles'. I do not recall the altitude call out from Approach. The aircraft responded; 'helicopter in sight' and I immediately called Approach and advised that I was the helicopter traffic at 2000 FT and I had the fixed wing traffic in sight. The fixed wing was at 2 o'clock and approximately 2500 FT. At the same time the medical crew noticed lights on the left side of the aircraft and I turned my attention to those lights and determined they were ground lights from local soccer field. When I turned to look for the fixed wing; it was approx 1 NM and no more than 500 FT above. I immediately started a descent to increase distance from the fixed wing. The fixed wing passed overhead and appeared to continue to the northeast. The crew in the cabin then announced that the fixed wing had done a 180 descending turn and was on our 6 o'clock with landing lights on. The crew kept the fixed wing in sight and provided advisories and was getting closer. It wasn't until the debrief at the end of the flight that the crew advised that they thought the fixed wing was getting dangerously close. To make our helicopter more visible I turned on all extra available external lighting; including the loading lights; side mounted scene lights; and all skid and searchlights. After turning on all the lights the fixed wing then made a right turn and the crew advised that the fixed wing was moving away from us. Continued flight for pickup. On return we debriefed the flight extensively with crew. The crew was upset and considered that the actions of the fixed wing put us in a dangerous near midair situation. Approach was contacted and an incident report was submitted.

Data retrieved from NASA's ASRS site as of April 2012 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.