Major Impairment/Damage

All damages or impairments that compromise the ongoing integrity or emergency preparedness (from a safety or environmental perspective) of an offshore installation, vessel or aircraft are considered reportable. Note: IRF (; OSH 15.4 (NL), OSH (NS) Element 2, Part 15, Section 15.4; INST 67 and 70; DPR 76.

This includes the impairment of critical systems but does not include the impairment of individual pieces of  equipment, unless collectively or individually they have the ability to impair all or part of a critical system. It does not include the reporting of damage or impairment to equipment where there are redundant systems in place such that functionality and availability of the system is not lost. Any damage or impairment, which results in production shut-in or drilling suspension, is considered reportable. In addition, any damage or impairment to environmentally critical equipment, which results in the inability to meet established limits, is considered reportable. Some examples of major impairment/damages include (but are not limited to):

• Loss of mooring, stability or buoyancy

• Failure in dynamic positioning systems

• Impairment of fire protection system

• Explosion, collapse or bursting of any closed vessel or associated pipework.

• Impairment of waste treatment system

• Loss or damage to a support craft

• Failure of any load-bearing parts and critical components of cranes or elevating devices

• Structural damage to structures from impact, erosion, corrosion or cracks

• Total power failure, coupled with a start failure of emergency power generators.

Source: Incident Reporting and Investigation Guidelines, The Canada-Nova Scotia Offshore Petroleum Board and Canada-Newfoundland and Labrador Offshore Petroleum Board, Canada, November 30, 2012. Regulatory Guidance

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