All 128 Boeing 777 that are in the world equipped with the Pratt & Whitney engine model, implicated in the incident of a plane in Colorado, were immobilized on the ground, a spokeswoman for the aircraft manufacturer told Agence France-Presse on Monday.
The US company had “recommended” the suspension of flights on Sunday night.
The US airline United Airlines, victim of the incident, the two large Japanese companies, ANA and JAL, and the South Korean Asiana Airlines, had already announced between Sunday and Monday the immobilization of their aircraft of this type.
The Federal Aviation Administration of the United States (FAA) on Sunday ordered additional inspections in some airliners of the model Boeing 777.
The US Bureau of Transportation and Security is also investigating the incident, in which no injuries were reported.
“While the investigation continues, we recommend suspending operations of the 69 777 aircraft in service and the 59 reserve aircraft equipped with Pratt & Whitney 4000-112 engines,” Boeing said in a statement Sunday.
United Airlines said it had voluntarily removed 24 Boeing 777 aircraft from service and expected the move to “only cause inconvenience to a small number of customers.”
Japan Airlines (JAL) and All Nippon Airways (ANA) announced that they grounded, respectively, 13 and 19 aircraft with PW4000 engines, but did not cancel any flights because they replaced those aircraft with others.
The Japanese Ministry of Transport said it had ordered more stringent inspections after a JAL 777 plane flying from Tokyo to Naha, on the island of Okinawa, suffered problems with “an engine from the same family” in December.
South Korea’s Transport Ministry, for its part, said Monday that it did not intend to ground planes at the moment but was monitoring the situation.
But Asiana Airlines, the second largest company in South Korea, has already made the decision not to use the seven Boeing 777s it has.
As for Korean Air, the country’s main airline, which initially told AFP that it had grounded its six Boeing 777s equipped with PW4000 engines, said it awaits official instructions from South Korean regulators.
In a statement posted on Twitter, Steve Dickson, administrator of the FAA, explained that after consulting with his team of aviation safety experts, he ordered them to issue “an emergency airworthiness directive that will require immediate or intensified inspections of Boeing aircraft. 777 equipped with select Pratt & Whitney PW4000 engines ”.