I'm sure it isn't as easy to hack as this makes it sound...
http://www.aviationtoday.com/av/cate...rcial/932.html
Data Loading
Data loading and configuration management are separate functions provided by the maintenance system. The data loader supports the insertion of data loads (operational software) into the appropriate avionics systems. "If you wanted to load a new piece of flight management software, it would come through this function," Morrow explains.
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.. this is the first time a maintenance technician with a wireless laptop (equipped with a Wi-Fi card) can walk up to the aircraft and get maintenance info on and off the airplane," Boeing's Sinnett says. "