S2A - Sparing To Availability
·Calculates for each part number the needed spares quantity in each stock, providing all required availabilities. The stock site for each block can be defined by user or by ORLA
·Calculates maximal achievable availability values for the blocks that the Availability requirements can not satisfied
·Selects the optimal solution providing minimal total cost of spare purchasing, storage, transportation and packaging for all replaceable blocks among all the satisfying solutions
·User can define Forward stock in every possible replacement site, in addition to central (Exchange) stock for a given block, which can be located in any site. If S2A calculates zero spares in a stock, this stock is not recommended
·Considers repair time and delay, spare purchase delay, transportation time, stock delay, mean stock waiting time as a result of possible orders queue in the stock
·Considers also sub blocks restoration time (Turn Around Time) in addition to the block repair time for non replaceable block
·Distinguishes between block reliability models with and without redundancy in the calculation of spare waiting time and sub blocks restoration time
·Recommends to combine spares with the same part number into one stock location or different locations, according to the cheapest solution
