Narrative:

Glider activity had been notamed all day at vsf (which is south of leb by 25 miles) within 5 miles of the airport and at or below 10000. I had observed numerous primary targets near leb and had asked the tower if they had seen any around the field. They reported yes. Aircraft X requested his clearance from the tower so the tower called me for a release altitude. I advised of the numerous gliders and suggested a route that would take him around the bulk of the activity. The pilot had reported to the tower that he had issues with the gliders on his way in. After the aircraft departed and reported on the frequency; I established radar contact and climbed him to 080 and again advised about the gliders. After a minute or two I observed the aircraft at 085 and queried the pilot on his altitude. At the same time I noticed a primary target about 3 miles away. The pilot responded that a glider was coming right at him so he climbed. I issued the traffic that had just popped up and he said he thinks that was him. Need a letter of agreement with vsf on glider operations. We need to either develop a soaring area they can operate safely in or restrict the distance and altitudes to pin them down in the interest of air safety.

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Original NASA ASRS Text

Title: ZBW Controller reported an airborne conflict involving an IFR aircraft and a glider. NOTAMs were issued reference to the glider traffic activity.

Narrative: Glider activity had been NOTAMed all day at VSF (which is south of LEB by 25 miles) within 5 miles of the airport and at or below 10000. I had observed numerous primary targets near LEB and had asked the tower if they had seen any around the field. They reported yes. Aircraft X requested his clearance from the tower so the tower called me for a release altitude. I advised of the numerous gliders and suggested a route that would take him around the bulk of the activity. The pilot had reported to the tower that he had issues with the gliders on his way in. After the aircraft departed and reported on the frequency; I established radar contact and climbed him to 080 and again advised about the gliders. After a minute or two I observed the aircraft at 085 and queried the pilot on his altitude. At the same time I noticed a primary target about 3 miles away. The pilot responded that a glider was coming right at him so he climbed. I issued the traffic that had just popped up and he said he thinks that was him. Need a letter of agreement with VSF on glider operations. We need to either develop a soaring area they can operate safely in or restrict the distance and altitudes to pin them down in the interest of air safety.

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.