AAOM Handbook

• Group records that indicate a probable recurring risk, i.e. the same Serviceable Item, hazards release mechanism. • Have a review team with both technical knowledge and experience of the history of the process consider the records and; o Validate/correct any risks defined for the records, o Validate/correct any prior grouping of records, o Identify other unrecorded events related to potential risk, o Group other events related to recurring risks, o Specify the most probable risks - those for which a pro-active Service strategy should be developed. • 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 types: In identifying the probable risks associated with a process consider at least the following possible hazard release mechanisms: • 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. • People - the errors, omissions or deliberate actions of people, resulting in changes to operating procedures/limits or material/equipment specifications, can lead to stress, chemical action or wear. • Environment; o Commercial - innovation and competition may lead to obsolescence of product, services or technology. o Natural – e.g. flood, tornado, hurricane, volcanic eruption, earthquake, or landslide can lead to stress, erosion, or silting.

© McAlear Management Consultants 2006

Operational Planning: Set Service Strategy

Updated: August 2018

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