dixi188 - To get the basic data correct is key to get Amos to do its job. If rotable sno's are marked as fitted to the wrong ac, the hours and cycles are not adding up correctly. It is really a tech-records issue to get this right, but it sounds like your previous system was not up to scratch if the imported data is wrong. Or maybe there is a delay in entering wo's after the fact.
There must be someone there with override capability so adjustments can be made. Else it will get worse and worse as time goes on. But it will probably still require removal, overhaul and recertification of all wrongly entered rotables, since as mentioned their hours and cycles can possibly no longer be trusted.