This was taken before a dive to look for fluidisation in Statflord A’s skirt. This is a sign to say that grout that was intended to form part of the foundations, had found its way to escape into the North Sea. The PC1801 was launched from the Intersub 4.
PC 1802 submersible . It had a maximum diving depth of 300m. The four-man submersible was supplied and operated by Intersub. It had a lock out capability for two divers.