227. A production licence holder keeps and maintains, for the duration of the tests, registers concerning(1) the persons arriving, leaving or present on the vessel or platform;
(2) the location and movement of support craft;
(3) emergency drills and exercises carried out;
(4) operating tests of surface and subsurface safety valves;
(5) the inspections of the installation and related equipment for corrosion and erosion;
(6) daily maintenance activities; and
(7) in the case of a floating installation, all installation movements, data, observations, measurements and calculations related to the stability and station-keeping capability of the installation.