Position: 89 08,9' N, 177 35' E, temperature - 14 C, air pressure 1031 hPa, wind 11 knots from ENE. Ice drift 0.2 knots towards northnortheast. Stopped the airgun at 0517 hours, we had a new crack through the ice on the port side about 20 meter away from the hovercraft widening several meters. Another crack 10 cm wide is parallel and passes 5 meter away from the craft. Hovercraft maintenance all day - replaced broken lift fan belt. Also removed the four jack-up legs and placed the hovercraft on four pallets. Felt a jerk of the ice floe. Audun observed a single 3 meter high pressure ridge about 30 meter to the south of the hovercraft. We evaluated the ice situation and decided to wait it out.