5.0 Prevention of Fuel Contamination

  5.1 Materials and/or their surface treatment used for the storage and distribution of fuel should be selected such that they do not introduce contamination or modify the properties of the fuel. The use of copper or zinc compounds in fuel piping systems where they may come into contact with fuel is not permitted. Copper-nickel materials are permissible but should be limited to positions after filtration and water absorption equipment.

  5.2 The location and arrangement of air pipes for fuel tanks are to be such that in the event of a broken vent pipe, this does not directly lead to ingress of seawater or rain water.

  5.3 Fuel samples should be taken on a daily basis throughout the fuel handling, storage, and distribution process from the tank in use, all filter vessels, and at the hose end. Fuel samples should be recorded and kept for 24 hours in a 1 US Gallon glass jar then disposed of in the aviation fuel waste/holding tank referred to in paragraph 2.6.1. A record should be kept of all fuel movements on board. Guidance on how to take fuel samples and record fuel movements may be obtained from Chapter 4 of UK CAA CAP 748 which is accessible via the UK CAA website www.caa.co.uk. Fuel in the holding tank may be passed to the main tank provided that suitable filtration is filled in accordance with para 3.5 to the satisfaction of the aviation inspection body.

  5.4 At least one member of crew on-board the vessel should be trained in the handling of aviation (JetA1) fuel and associated quality control procedures. This person(s) should oversee all operations involving the movement of aviation fuel on-board. Further guidance on such training may be obtained from the fuel supplier, and marine aviation consultants.