Chrysi

💥 WTF is ACTUALLY going on? ✈️ ⚠️ All aircraft grounded in the USA 🔥 Sky’s closed: FAA grounds every US departure after ATC communications collapse On Friday afternoon the FAA issued a rare nationwide ground stop. No planes could take off from any US airport. Aircraft already airborne were allowed to land. International flights handled case-by-case. This is only the second nationwide ground stop since the 9/11 terrorist attacks. What actually happened? Transportation Secretary Sean Duffy and the FAA said it was caused by a communications/telecommunications outage hitting Air Route Traffic Control Centers (the regional centers that manage planes en route between airports). Controllers lost radio frequencies and automation for handoffs in multiple centers, including major ones. Homeland Security Secretary Markwayne Mullin stated there was no indication of a nefarious act or cyberattack. It was described as a telecommunications outage. Officials also said it was not connected to the major Microsoft 365 outage that began Thursday and continued into Friday (Outlook, Teams, Copilot, etc.). Flight tracking sites showed thousands of delays and cancellations quickly piling up. The Microsoft piece The Microsoft outage was a separate technical issue (servers failing health checks / a process for secure connections getting overwhelmed after network changes). It hit businesses, schools, governments, and some airline customer emails worldwide, but did not ground flights. Officials were clear the two events were unrelated — but they happened within 24 hours. Why this feels so fragile Air traffic control still depends on radio frequencies, telecommunications links, and aging digital systems. When those fail at the regional center level, the whole national system has to stop for safety. Modern aviation was considered incredibly safe because of these systems — but it has very little tolerance for simultaneous failures across the network. In theory all modern systems are safe, but life shows multiple “Black Swan” events can make them unsafe/dangerous when no alternatives can be switched on. Real, tested backups is exactly the conversation this event should trigger. Critical infrastructure (ATC, power grids, banking, hospitals, logistics) is now so tightly coupled to digital and telecom systems that a single outage class can cascade. Keeping robust analog, manual, or independent backup procedures isn’t nostalgia — it’s resilience. Controllers already train for radio failure procedures; the question is whether the system as a whole has enough independent fallback capacity when the primary CENTRALISED digital layer drops. That’s a BIG shout for action. When safety or continuity of modern society is at stake, costs must not be the deciding factor. It is SURVIVAL 🔥 This is still developing in the USA. As of the latest reports Friday evening, the ground stop remained in effect with no clear end time, and FAA technicians were investigating. Recovery, once it starts, will take longer than the outage itself as crews, aircraft, and passengers get re-sorted. 💥💥💥💥 The world runs on digital systems. Days like this are a reminder that those systems need real, tested backups — not just more layers of the same tech. I am terrified when a serious hostile hacking happens on modern societies and not just technical “failures.”
 The same serious thinking must consume decision makers and engineers. Thousands of aircraft are in the air trying to land slowly and safely. Let’s hope this massive failure does not have any victims 🙏🏻 @flightradar24 captured the moment: a map of planes still in the air over and heading toward the US, with everything on the ground frozen.