A new study obtained by ABC News suggests that cell phones and other personal electronic devices might be causing electronic interference on airplanes. U.S. airlines all require that passengers power off any and all electronic devices, many claiming that “flight mode,” isn’t even allowed. Of course, if you’re like us, you may ignore those warnings and leave your phone on until the last possible second (or entirely with flight mode activated). The report, however, found that there were 75 different incidents between 2003 and 2009 where interference from personal electronics was possible. From ABC News:
Twenty-six of the incidents in the report affected the flight controls, including the autopilot, autothrust and landing gear. Seventeen affected navigation systems, while 15 affected communication systems. Thirteen of the incidents produced electronic warnings, including “engine indications.” The type of personal device most often suspected in the incidents were cell phones, linked to four out of ten.
During one flight, for example, autopilot disengaged at 4,500 feet. When pilots asked flight attendants to search the cabin for electronic devices, they discovered that one phone and three iPods were being used. After those devices were powered down, the flight continued without any incident. ABC News’ aviation expert, John Nance, isn’t convinced the electronics are to blame, however. “If an airplane is properly hardened, in terms of the sheathing of the electronics, there’s no way interference can occur,” he said. For reference, there are over 35,000 flights daily in the United States.