occur at CIA once in a unlikely to few years occur 10-7 per on average. during the hour) Reported in programme the industry or activity occasionally About once Can be a month. expected Known to 1 in 10 to occur at occur at CIA (10-3 to 4 Occasional least once about 10 10-5 per during the times per hour) programme year on or activity average About once Almost a week. certain to Known to occur 1 in 2 (1 to occur at CIA several 5 Frequent 10-3 per about 50 times hour) times per during the year on programme average or activity Figure 5: Risk Probability Matrix Safety Risk Severity Safety risk severity is defined as the extent of harm that might reasonably occur as a consequence or outcome of the identified hazard. The severity assessment can be based upon: Fatalities/injury. How many lives may be lost (employees, passengers, bystanders and the general public)? Damage. What is the likely extent of aircraft, property or equipment damage? The severity assessment should consider all possible consequences related to an unsafe condition or object, taking into account the worst foreseeable situation. Risk Severity Qualitative Severity Description Reputation Health and Safety Operational Safety Security Environment Financial Level and Legal Severity first aid Nuisance or distraction. treatment (e.g. Procedure violated with no Minor Minor adverse effect. Less than No 1 breach of No Effect cut/abrasions) Slightly reduced margin of £100K Implication regulations causing minimal safety but controlled within Negligible work interruption existing procedures.
occur at CIA once in a few years on average. Reported in the industry occasionally unlikely to occur during the programme or activity 10-7 per hour) 4 Occasional About once a month. Known to occur at CIA about 10 times per year on average Can be expected to occur at least once during the programme or activity 1 in 10 (10-3 to 10-5 per hour) 5 Frequent About once a week. Known to occur at CIA about 50 times per year on average Almost certain to occur several times during the programme or activity 1 in 2 (1 to 10-3 per hour) Figure 5: Risk Probability Matrix Safety Risk Severity Safety risk severity is defined as the extent of harm that might reasonably occur as a consequence or outcome of the identified hazard. The severity assessment can be based upon: Fatalities/injury. How many lives may be lost (employees, passengers, bystanders and the general public)? Damage. What is the likely extent of aircraft, property or equipment damage? The severity assessment should consider all possible consequences related to an unsafe condition or object, taking into account the worst foreseeable situation. Risk Severity Level Severity Qualitative Severity Description Health and Safety Operational Safety Security Environment Financial Reputation and Legal 1 Negligible first aid treatment (e.g. Minor cut/abrasions) causing minimal work interruption Nuisance or distraction. Procedure violated with no adverse effect. Slightly reduced margin of safety but controlled within existing procedures. Minor breach of regulations No Effect Less than £100K No Implication
01-Cambridge-Airport-Aerodrome-Manual-E14-V0.3.docx