Secretary of State Antony Blinken switched planes after his original plane took off in Zurich, Switzerland on Wednesday.
He initially boarded a Boeing C-40 that was part of the US military service, but that plane suffered a critical failure due to an oxygen leak.
A new plane was assigned to Blinken. The press pool traveling with him was advised to arrange a commercial flight as the new aircraft could not accommodate journalists.
Blinken was in Davos, Switzerland this week to attend the World Economic Forum, a summit of government and business leaders.
Boeing has been the center of much controversy and scrutiny ever since The door jambs of the plane belonging to Alaska Airlines are separated in the air, temporarily called the Federal Aviation Administration ground Boeing 737 Max 9 aircraft in the US or operated by US airlines.
This is an evolving story. Please check for updates.