Re:this is to stop cheaters (Score 1)

I'm not sure how people could "cover up" anything...the information these systems record is related to engine performance (cylinder head temperatures, exhaust gas temperatures, and the like). Maintenance information is maintained on paper, with written sign-offs by the mechanics who do the work, and the FAA has VERY strict accountability procedures. (None of that affects the average pilot unless the FAA has cause to investigate a crash or complaint, but that's a separate issue).