A followup to my earlier post, bsmooth1; an electronics engineering technical journal article containing the results of the authors' own study of interference by consumer electronics and some of the anecdotal evidence collected by NASA through that agency's Aviation Safety Reporting System (ASRS). Aircrew can anonymously report potential safety problems to the ASRS.

For example:

"In one telling incident, a flight crew stated that a 30-degree navigation error was immediately corrected after a passenger turned off a DVD player and that the error reoccurred when the curious crew asked the passenger to switch the player on again. Game electronics and laptops were the culprits in other reports in which the crew verified in the same way that a particular PED caused erratic navigation indications."

In all, quoting again from the article on aircraft instrumentation interference by personal electronic devices, "we found 125 entries in the ASRS database that reported PED interference. Of these, 77 were considered highly correlated, based on the description of observed PED use and interference occurrence. The reports included cases of critical aircraft systems such as navigation and throttle settings being affected."