In the wake of Boeing 777’s weekend horror over engine failures, the Federal Aviation Administration immediately moved to suspend flights of the same model plane.
On Tuesday, the FAA said it had been considering stricter rules on the same type of plane before Denver’s flight following a similar incident at Japan Airlines in December, when Pratt & Whitney’s engine also failed. I made it clear.
The statement comes from a US agency that was once considered the gold standard for aviation safety, working to regain its position following the previous Boeing 737 MAX disaster.
A September 2020 parliamentary investigation into two MAX crashes that killed 340 people found that the crash was “a horrifying compilation of a series of false technical assumptions by Boeing engineers, a lack of transparency in Boeing’s management, and terrible.” Said. Inadequate monitoring by FAA. “
FAA Chief Steve Dickson is looking forward to the National Transportation Safety Board’s investigation, but said the authorities are proactive and repeated the authorities’ commitment to safety.
“We are not waiting for it,” Dixon said of the NTSB. “We are acting with the best data we have.
“We want to understand what happened and take steps to prevent this from happening again in the future,” Dixon said.
Denver United Airlines planes had to scatter the wreckage of the plane out of Denver after an engine failure, burned out shortly after takeoff, and quickly returned to the city’s airport.
NTSB Chairman Robert Samwalt said Monday that the root cause of the incident appeared to be metal fatigue, adding that the investigation was underway.
“I knew who, when, what, what, and what to do,” the NTSB said by examining United Airlines inspection records.
The Denver case is similar to the previous case in February 2018, when another United flight with the same Pratt & Whitney engine was forcibly returned after takeoff.
Following that incident, the FAA reviewed 9,000 fan blade inspection reports and issued an Airworthiness Directive to set new rules for inspection.
FAA’s work on the 777 came after widespread criticism of its failure at MAX.
After the first fatal MAX crash on a Lion Air plane in October 2018, the FAA notified airlines of a major flight processing system that could continue to fly despite a misfire. ..
MAX was not grounded globally until the second crash on an Ethiopian Airlines plane in March 2019. The FAA has received particular criticism of the decision between the two crashes.
Aviation experts believe that the 777 problem is different from the MAX, not only because there were no fatalities, but also because the 777 problem is related to skilled planes. Many of the questions focus on proper maintenance, not on airplane design.
John Cox, head of Safety Operating Systems, an aviation consulting firm, said FAA’s approach to 777 was “defensive,” given that FAA ordered rigorous inspections after the 2018 incident.
“If we knew what we knew now, improving the test might have been a good thing, but they didn’t know it at the time,” Cox told AFP. “It’s important to recognize that they acted on the data they had.”
Richard Aboulafia, an aviation analyst at Thiel Group, said at this point FAA’s past actions were “reasonable” from what was known, and the dynamics around 777 were “very different” than they were at MAX. “He added.
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