Airlines around the world canceled and delayed flights heading into the weekend to fix software on a widely used commercial aircraft after an analysis found the computer code may have contributed to a sudden drop in the altitude of a JetBlue plane last month.

Airbus has decided to ground more than 6,000 A320 jets to implement an urgent software update nearly a month after a JetBlue flight suddenly lost altitude mid-flight and sent at least 15 passengers to the hospital.

Airlines around the world reported short-term disruptions heading into the weekend as they fixed software on a widely used commercial aircraft, after an analysis found the computer code may have contributed to a sudden drop in the altitude of a JetBlue plane last month.

Airbus said in a statement on Friday that the recalls were issued because the company found that intense solar radiation could “corrupt data critical to the functioning of flight controls” in its A320s.

Aviation regulators have ordered urgent inspections of the Airbus A320 family of jets. The order follows a JetBlue plane's experience of an uncontrolled "pitch down" event last month.

Airbus identified an apparent issue relating to "intense solar radiation," which "may corrupt data critical to the functioning of flight controls" and recommended an emergency software update to the A320 family of aircraft – a common passenger plane for U.S. carriers.

The airline says all of its impacted A320-series jets are now updated following a software directive that disrupted travel for passengers around the world.