Unless i miss the target (likely!) I suspect that the Part 145 MOE didn't specify a PC programme for tech records - together with all the associated data back-up procedures etc etc. FAA can be pretty strict on such things; if you didn't refer to it then you can't legally use it (because, I suspect, there will be no audit programme specified in the procedures manual) Just jumped through hoops over here (UK) with a Company who extended their existing EASA part 145 approval to now be approved as FAA also. Painful exercise. Actually I thought there was a level playing field. Apparently I got that wrong.
Best ~ VFR