I think you will find not only the 412 is having a spares shortage but all the bigger SAR/EMS/Offshore twins (412,365,332,225,S-76,S-92) will be suffering the same short falls, all these machines are on about 2 years backorder for new machines and the manufactures are having trouble suppling parts for the new builds let alone the hundreds of older machines , now with increased flying rates round the world, I believe it will only get worse as the demand for offshore twins in particular increase and bigger operators will end up xmas treeing machines to keep others on line (particularly machines in heavy maintenance don't be suprised if your 3000hrly 412 service goes from 6 weeks to 12 or a 332 G check goes from 12 weeks to 18 all for lack of parts!