Jakarta, CNBC Indonesia – United States (US) regulators announced additional inspections of Boeing Co 777 jets using the same engine type on United Airlines aircraft. The regulatory move involves an engine made by aerospace company Pratt & Whitney, namely the PW4000 high-bypass turbofan aircraft engine.
This happened after United Airlines 777 suffered engine failure shortly after taking off on Saturday (20/2/2021) yesterday. The incident resulted in an explosion in which fragments of the fuselage rained down on the soccer field, homes and yards on the outskirts of Denver.
As a result of the incident, the United Airlines plane landed again at Denver International Airport. The next day, United Airlines said it would volunteer and temporarily remove 24 active aircraft of this type from its flight schedule.
According to the Federal Aviation Administration (FAA), United Airlines is the only US aircraft operator to use the Boeing aircraft. Other airlines using the same type of aircraft are in Japan and South Korea.
“We reviewed all available safety data after yesterday’s incident,” the FAA said in a statement Reuters.
“Based on preliminary information, we conclude that the inspection interval should be increased for the perforated fan blades unique to this engine model, which is used only on Boeing 777 aircraft.”
Japan also suspended the use of this type of Boeing aircraft. Japan’s transport ministry ordered Japan Airlines Co Ltd (JAL) and ANA Holdings Inc to suspend use of the 777 aircraft with PW4000 engines while considering whether to take additional action.
The transportation ministry said that on December 4, 2020, the JAL flight from Naha Airport to Tokyo International Airport was forced to return to the airport due to damage to the left engine about 100 kilometers north of Naha Airport.
The plane is the same age as the 26-year-old United Airlines plane involved in the incident last Saturday. Japan says ANA operates 19 types and JAL operates 13 of them.
Pratt & Whitney, which is owned by Raytheon Technologies Corp., could not be reached for comment, and Boeing said its technical advisers would support a US National Transportation Safety Agency investigation.
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