On January 14, 1996, about 1000 eastern standard time, a Cessna 172M, N61765, was substantially damaged when it collided with a snowbank during a go-around at Boire Field, Nashua, New Hampshire. The flight instructor, student pilot, and passenger were not injured. There was no flight plan for the instructional flight. Visual meteorological conditions prevailed for the local flight that was conducted under 14 CFR Part 91. The pilot reported he was conducting a landing on runway 32, a 5500 foot long, 100 foot wide runway. In the NTSB form 6120.1/2, the pilot stated: ...The student flew the approach from downwind to base to final. The approach was normal. Tower reported winds [from] 230 [degrees at] 8 [knots gusting to] 18 variable 40 degrees either side. Approximately halfway down final, I assumed control of the aircraft as previously planned for this lesson. Moderate left wind correction was all that was required [through] short final and into ground effect. At this point, the wind sheared abruptly drifting us to the right....At this point I elected to go around. The wind appeared to be now gusting in a quarterly tailwind....Before the climb started, it appeared to me the right main [landing gear] struck the high snowbanks at the edge of the runway. At this point the aircraft lost momentum settled into the snow and came to rest inverted. There were no injuries... Additionally, the pilot stated that there were no mechanical malfunctions or failures with the airplane.