Position: 88 57.55' N, 115 06.1' W, temperature - 35° C, air pressure 1015 hPa, wind 2 knots from NNW. Ice drift 0.1 knots towards northeast. Shooting seismic reflection all day. Deployed the corer below the level of the unconformity. Found core catcher missing upon recovery. Serious winch problem as the Kevlar has worn a groove in the POM capstan from friction heat and the extra turns of cable on the capstan refuse to move sideways. Took four hours to get the corer up. Solved the problem by turning the winch 180 degrees and the groove moved out of the critical area.