FAA ground stop, Microsoft outage, Hormuz strikes: does Washington have a plan?

On Friday 13 November the FAA halted departures from all US airports, citing communications problems. It was the longest nationwide ground stop since the 11 September 2001 attacks. More than 8,000 flights were cancelled that day.

These are separate events. None of the reports reviewed by Vocemundi links the FAA ground stop or the Microsoft outage to Iran, or to each other.

What is confirmed

SpaceX's Starship Flight 15 launched the same Friday. From Thursday 12 November, a Microsoft 365 outage disrupted Outlook, Teams and other services. Downdetector logged reports from 74 countries and territories. Microsoft said it was not a cyber-security incident. On Friday it apologised and reported a broad recovery.

US forces struck Iran's Qeshm Island in early November. A US official called the strikes defensive, according to AP. On Sunday 15 November Bahrain's interior ministry urged residents to "proceed to the nearest safe location". Its alerts did not name the source of the threat.

What is disputed

Officials gave different causes for the ground stop:

• Duffy, Friday: Transportation Secretary Sean Duffy blamed "DECADES-OLD analog equipment" in a post on X, according to Ars Technica.
• Duffy, Saturday: He cited routine maintenance by contractor L3Harris, during which a new router flooded other routers. He said it was not yet known whether installer error or a faulty router was to blame.
• L3Harris: The contractor called the work modernisation and said it was more than 70% complete.
• FAA: FAA Administrator Bryan Bedford referred to a "defective piece of equipment".

President Trump said US military action in Iran is effectively over, Business Standard reported on 10 November. He also said the US does not need a deal and controls the strait, Anadolu reported on 12 November. In the same period, US Central Command said it intercepted two Iranian drones headed for Bahrain.

The IRGC said it destroyed a US radar in Bahrain. US Central Command denied this. The IRGC also said on 4 November that four tankers had caught fire after hitting mines. BBC Verify found no evidence that four tankers were destroyed. Reuters, citing three unnamed sources, reported an Iranian attack on navigation systems on Oman's Didamar island.

What each side says

Bedford said officials saw "zero evidence of anything nefarious, and zero evidence of anything AI-related", according to Al Jazeera. The BBC quoted Trump as saying the conflict would end "when I say it ends". In October, Mohsen Rezaei, described as Iran's security chief, warned that regional cables and data centres could be attacked if war resumed, according to Al Jazeera.

What officials have not explained

• The Starship launch: CNN put the launch at 5:47 p.m. ET, during the stop. It noted that rockets use different tracking equipment from aircraft. The reports reviewed by Vocemundi include no FAA statement on the launch.
• The FAA's root cause: Bedford said a root-cause analysis would be shared when available. The reports give no date.
• Microsoft's cause: Microsoft cited "elevated load" and an issue during an earlier network capacity upgrade. The reports do not describe a final review.
• Shipping in Hormuz: The reports do not include a stated White House plan for shipping safety. They mention only BBC reporting that the US military has been protecting tankers.

Analysis

The three events differ in kind, but each leaves an open question about official explanations. Within a day, Transportation Secretary Sean Duffy's account shifted from ageing equipment to a maintenance fault, though on Saturday he still cited a "decades-old air traffic control system". A published root-cause analysis could show which applies, or whether both play a part. Microsoft's account of its outage remains partial in the reports reviewed. In the Gulf, statements that the war is effectively over sit alongside strikes, drone interceptions and shelter alerts. A stated US policy on shipping safety, or fuller independent verification of Iranian claims, would clarify the situation. The reports reviewed describe no such policy so far. BBC Verify found no evidence for the IRGC claim that four tankers were destroyed, but other Iranian claims have not been independently checked in these reports.

Produced by the Vocemundi newsroom with AI assistance.