Boeing 787 Software Bug Causes Catastrophic Failure

/ 8 years ago


Boeing can’t seem to get away from bad 787 issues. Coming after a number of battery issues and fires, Boeing’s latest 787 Dreamliner has been issued a new airworthiness directive by the FAA to all operating airlines. Again related to power, a software bug can cause a catastrophic power failure, leading to loss of control.

In simulator tests, Boeing discovered that after staying on for 248 days, the plane suffered from a bug causing a full power loss. Due to an integer overflow, all 4 AC generator control units will simultaneously go into failsafe mode and cease operating. This causes the plane to lose all AC electrical power and potentially cause loss of control as well. This software bug also appears no matter what the state of flight is, meaning it could happen on the ground, during takeoff and landing or in the air as long as 248 days are hit. There are some suggestions that it’s related to a 32bit integer overflow after the generator control units have been on for over 231 centiseconds.

While the issue has been present, no plane so far has stayed on for more than 8 months (248 days). Luckily, Boeing was able to discover the issue on its simulators before a real plane was lost, averting a real disaster. While not all software bugs are easy to handle or fix, this is one of those few cases, where turning it on and off just might do the trick.

Topics: , , ,


By supporting eTeknix, you help us grow and continue to bring you the latest newsreviews, and competitions. Follow us on FacebookTwitter and Instagram to keep up with the latest technology news, reviews and more. Share your favourite articles, chat with the team and more. Also check out eTeknix YouTube, where you'll find our latest video reviews, event coverage and features in 4K!

Looking for more exciting features on the latest technology? Check out our What We Know So Far section or our Fun Reads for some interesting original features.

eTeknix Facebook eTeknix Twitter eTeknix Instagram eTeknix Instagram
  • Be Social With eTeknix

    Facebook Twitter YouTube Instagram Reddit RSS Discord Patreon TikTok Twitch
  • Features

Send this to a friend