demanded as soon as possible. gary 0 donoghue, bbc news. we can now speak to associated press airline reporter, david koenig whojoins us from dallas. the faa say the system failure was due to a damaged file, lots of questions as to why backup systems didn t prevent the failure, where did it all go wrong? that s exactly right that s what the investigation will hopefully answer, because there is an ironclad rule in aviation you are supposed to have redundancy, you aren t supposed to have a single point of failure we just one thing goes wrong and the whole system collapses. the faa under a lot of pressure, to describe why they didn t have a backup system or if they do why it didn t work. they tried to
that they don t fail often. when i mean that they are redundant, there are backups that can be applied immediately. they are resilient, they can recover quickly. more operation. and those qualities were obviously not affective in this case. it is also important that we not have single points of failure. in any of our systems. or common points of failure that seems to have happened in this case. the primary system and the backup system, both apparently, had the same corrupted file. it did not work that way. how old is this technology? clearly it sounds like at the very least that it needs to be upgraded? i think that is an indication of how many systems, at every major organization, every government agency is in desperate need of upgrades. we need to resort to give the resources necessary to do this. i ve been saying for a long time that there is a strong business case for making those kinds of quality and safety
get back up and running within 90 minutes. and airplanes i got delayed in the end just an hour and ten minutes. and i had a flight at the key time. what is the corrupt file about? what is this mean? this glitch there talking about in the notam system? we are told they found a corrupted filing the database of the main notam system. seriously, they also found a corrupted vial in the backup system. so the question is, what kind of system are we talking about? how old is the system? how well maintained is it? is it capable of keeping up with the incredible demands that we put on our aviation system. wait, this corrupt file mean something the various? or it could be something like a benign glitch. it could really go either way. i m glad the administration s couch in the references to cybercrimes as, we have no indication at this time of a cyberattack. i think it is a little bit early to be drawing the conclusion that there was no cyber connection to this. but as we know, the attac
we re getting a clearer picture now into what went wrong behind the scenes. the faa now says it was a damaged database file that led to the meltdown of the mission to air systems, which gives critical alerts to pilots. the damaged file not only caused the main system to meltdown but also the backup system to meltdown according to sources. now multiple government sources tell us this is initially a problem known to the faa on tuesday afternoon but the faa tried to reset that system on wednesday morning when it thought it would have the least impact on air travel that ultimately failed causing the nationwide ground stop. multiple sources tell us that that file was not put in by any one particular person, they don t know that just yet, they also don t know if it was any one particular action that caused that file to be corrupted. there s big questions here for pete buttigieg, the faa falls under his portfolio at the