As the fleet size increases, so the level of nuts and bolts, spares parts etc held in stores will need to be inceased to ensure that aircraft are returned to service following routine maintenance and when they go tech - not just ADDs.
Whilst it will cost more to hold increased stock levels, that must be balanced against the down time of aircraft not flying where the parts are not in stock.
What are the recognised formulae to ensure adequate stock levels but avoid over stocking with that increased cost, and at the same time attempting to minimise AOG situations.
