Safety Operators' Reports Handwritten loose paper daily log. Provides the date, time and brief description of various events and activities within the remit of the safety operator, such as testing equipment and drills, routine checks and maintenance, helicopter traffic and all real or false alarms. Complete run with almost every day noted, though for several days the original handwritten sheet has been lost and a photocopy inserted, some of which are faded and difficult to read. 6 April 1981 - 18 August 1982