Passengers said the cabin seemed "noisier and colder than they were used to." That's when a crew member noticed a window seal flapping at the back of the aircraft.

India's second-largest domestic carrier placed orders for 220 Boeing aircraft valued at $34 billion and 250 Airbus planes in a separate deal that could be worth tens of billions of dollars.

Russian airlines can no longer get spare parts or technical support for their Airbus and Boeing planes.

The commercial jet makers have been warning that a plan to deploy new 5G wireless networks could pose a danger to vital aircraft systems.

After a devastating pandemic limited travel for more than a year, United is optimistic about the future and plans to spend billions of dollars upgrading and expanding its fleet.