> Interestingly, by 14 CFR 43.3(k) even the "official" method described in the article is noncompliant, as the device is removed from the aircraft, and put into

> Interestingly, by 14 CFR 43.3(k) even the "official" method described in the article is noncompliant, as the device is removed from the aircraft, and put into a docking-station at home, loaded via RS232. It's not noncompliant, it just means that owner maintenance on this GPS isn't possible and has to be done by a specialist. A general rule I go by is if something needs to come out of the panel, it needs a mechanic or avionics tech to do. This unit is from 1996. IIRC we weren't allowed to do our own updates until 2012 or so. So it's not surprising that owner maintenance may not be legally possible on it. I can pretty easily construct a scenario where doing something like this gets you in trouble. Chances are nothing will happen but it's all about your risk tolerance. Mine is pretty low.