Narrative:

Flying towards lighthouse just offshore at 700 ft; I made a radio call on CTAF that I was nearing the lighthouse. I heard a response from a helicopter coming from the opposite direction reporting bad weather. I announced that I would be making a course reversal. As I turned left 180 degrees; I saw what looked like a piper cherokee just above to our right about 300 ft above and 300 ft to the right appearing to be making a climbing bank to the right to avoid us.both I and the helicopter that was approaching from behind me now tried to make radio contact with the airplane. He was not on frequency.I feel that if the airplane had been on frequency; I would not have been surprised to see him; and he would not have been surprised to see me turn; which would have resulted in a much safer interaction.

Google
 

Original NASA ASRS Text

Title: Helicopter pilot reported a NMAC with a fixed wing aircraft that was not monitoring the local frequency.

Narrative: Flying towards lighthouse just offshore at 700 ft; I made a radio call on CTAF that I was nearing the lighthouse. I heard a response from a helicopter coming from the opposite direction reporting bad weather. I announced that I would be making a course reversal. As I turned left 180 degrees; I saw what looked like a Piper Cherokee just above to our right about 300 ft above and 300 ft to the right appearing to be making a climbing bank to the right to avoid us.Both I and the helicopter that was approaching from behind me now tried to make radio contact with the airplane. He was not on frequency.I feel that if the airplane had been on frequency; I would not have been surprised to see him; and he would not have been surprised to see me turn; which would have resulted in a much safer interaction.

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.