Boeing has recommended that any airline flying the Pratt & Whitney 4000-112 powered Boeing 777 should ground them pending an investigation into the United Airlines flight which suffered an uncontained engine failure on Saturday.
United Airlines, Korean Air, Asiana Airlines, All Nippon Airways and Japan Airlines all operate the type of which it is believed 69 are in service and a further 59 in storage.
In addition to Boeings recommendation, the Federal Aviation Administration (FAA) has also issued an airworthiness directive ordering checks on PW4000 engines to be stepped up.
A spokesperson for Boeing said: “Boeing is actively monitoring recent events related to United Airlines Flight 328. While the NTSB investigation is ongoing, we recommended suspending operations of the 69 in-service and 59 in-storage 777s powered by Pratt & Whitney 4000-112 engines until the FAA identifies the appropriate inspection protocol.
“Boeingsupports the decision yesterday by the Japan Civil Aviation …