13/1-15

Position: 87° 23.4' N, 63° 57' W, temperature - 32° C, air pressure 1009 hPa, wind 3 knots from the NE. Ice drift 0.1 knots due south. Acquiring seismic reflection data all day. At 2200 hours, the generator suddenly stopped. The cause was loss of compression. Adjustment screw on valve rocker arm broken and valve lifting rod unseated - metal parts came out when the oil was drained. We had two identical 4.5 kW diesel generators and now both are down with the same fatal fault. One generator had over 3.000 hours and the spare only 2 hours before break-down.