AAOM Handbook

o Environment, e.g. temperature, moisture, dust, etc., o loading, o duty. • Identify any Serviceable Items that are similar in design and application for which risk data is available. Data may be available from; o other similar processes, o other companies, o manufacturers. • Have a review team with both technical knowledge and experience of the of the Serviceable Item types and application consider the data and; o Review potentially relevant data from similar items and applications. o Specify the most probable risks for each Serviceable Item. • Describe each probable risk, as the Serviceable Item, the hazard type, and the hazard source. For example; o employee stress from extended working hours, o slurry pump wear from abrasive fluids, o engine wear from contamination of oil, o structural steel corrosion from paint failure.. In identifying the probable risks associated with a process consider at least the following possible hazard types: • Stress - materials science subdivides this into catastrophic overstress that produces sudden failures (e.g. fracture), prolonged high stress that produces creep deformation and prolonged cyclic stress that produces fatigue failure. Similar types of results can be produced in people. Some examples of potential forms of stress are; physical/mechanical, thermal, voltage, radiation, mental, etc. • Chemical - in materials science terms this would be due to the (re)action of chemicals such as oxygen, acids, alkalis, but in a broader context could also include drugs, alcohol etc. • Wear - materials science subdivides wear into different mechanisms for the removal of material e.g. abrasion, erosion, fretting etc. • Fouling - accumulation of material e.g. silting, scaling, contamination etc. • Obsolescence - this is not a category used in materials science but reflects a type of hazard that arises from the loss of support for either the products or services of a process, e.g. due to innovation or competition, the imposition of constrictions to the process, e.g. imposition of new standards/laws, or the loss of essential resources for the continued operation of the process, loss of people, skills or knowledge, loss of parts sources etc. In identifying the probable risks associated with a process consider at least the following possible hazard release mechanism: • Design - fatigue, chemical action, wear and fouling are all, to some extent, 'designed in' to a process based on the purpose of the process and the choice of technologies for its implementation. • Operation - the life, operating rates, operating conditions, feed materials etc.

© McAlear Management Consultants 2006

Operational Planning: Set Service Strategy

Updated: August 2018

Page 39