state safety programme for pakistan manual - Civil Aviation Authority

STATE SAFETY PROGRAMME FOR PAKISTANindicators, to establish safety performance targets and to take action,where necessary, to improve safety.E5.4.1.4 ICAO uses following three elements to define an acceptable level ofsafety for use both in an SSP and in a service provider's SMS.E5.4.1.4.1E5.4.1.4.2E5.4.1.4.3E5.4.1.4.4E5.4.1.4.5E5.4.1.4.6E5.4.1.4.7Safety performance indicators (SPI): these are shortterm,tactical measurable safety performance outcomesof the safety performance of an aviation organization ora sector of the industry. They are expressed innumerical terms. These are the measures (or metrics)used to express the safety performance in a system.They should be uncomplicated, easy to measure andenable linkage between the Safety Plan and anoperator’s/service provider ’ s SMS. They will thereforediffer between segments of industry, such as aircraftoperators, aerodrome operators or ATS providers.Safety performance targets (SPT): these are longterm,strategic measurable safety performanceoutcomes of the safety performance of an aviationorganization or a sector of the industry. They areexpressed in numerical terms. Represent the desiredlevel of safety performance. A safety performance targetcomprises one or more safety performance indicators,together with desired outcomes expressed in terms ofthose indicators. These are necessarily determined byconsidering what safety performance levels aredesirable and realistic for individual serviceproviders/operators. SPT should be measurable andacceptable to the parties involved.Safety requirements: these are the tools and mean toachieve the safety performance indicators and targets ofan SSP. They include operational procedures,technology, systems and programmes to whichmeasures of reliability, availability, performance and/oraccuracy can be specified.The acceptable level of safety to be achieved shall beestablished by the Regulators. However, theestablishment of an ALoS should involve close liaisonbetween the Regulator and service providers so thatboth the SSP and service providers SMS have similarALoS.In determining an ALoS, it is necessary to considervarious factors such as the level of safety risk thatapplies the cost/benefits of improvements to the system,and public expectations on the safety of the aviationindustry.The ALoS will also be commensurate with thecomplexity of individual service provider's specificoperational contexts and their availability of resources toaddress safety risks.The agreed ALoS will be expressed by multiple safetyperformance indicators and safety performance targets,never by a single one, as well as by safety requirementsin the form of remedial actions.15/03/2010 Page 14 of 24 MNL-001-PDRG-1.0