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SINGAPORE: Singapore Airlines (SIA) and Scoot have checked the fuel switches of the Boeing 787 aircraft in their fleets, SIA said on Tuesday (Jul 15), after reports of similar moves by India and South Korea.
The fuel switches of the Boeing 787 Dreamliner have come under scrutiny after a preliminary report on last month's Air India crash showed that the controls were moved from the "run" to "cutoff" position, starving the engines of fuel.
“As a precautionary measure, SIA and Scoot have carried out and completed checks on the fuel switches of the Boeing 787 aircraft in our fleet,” SIA said in response to CNA's queries.
“The safety of our customers and staff is our top priority.”
CNA has contacted SIA to ask about the outcome of the checks, as well as the Civil Aviation Authority of Singapore (CAAS) for comment.
India on Monday ordered its airlines to examine fuel switches on several Boeing models, after several Indian and international airlines began making their own inspections of fuel switches.
South Korea said it would order a similar measure, while Japan’s JAL said it would “implement any necessary inspections based on its findings”.
Checks were being conducted despite the planemaker and the US Federal Aviation Administration (FAA) telling airlines and regulators in recent days that the fuel switch locks on Boeing jets are safe.
The FAA's notification to civil aviation authorities, seen by Reuters, said: "Although the fuel control switch design, including the locking feature, is similar on various Boeing airplane models, the FAA does not consider this issue to be an unsafe condition that would warrant an Airworthiness Directive on any Boeing airplane models, including the Model 787."
THE REPORT
The preliminary report noted a cockpit recording where one of the pilots is heard asking the other why he cut off the engine. The other pilot responded that he did not do so.
The report did not say how the switches could have flipped during the flight, given the design of these controls. “There’s no way that you can accidentally knock it and then it goes in the opposite direction,” Mr Chow Kok Wah, a former airline executive in aircraft maintenance, told CNA.
The report said both switches transitioned back from “cutoff” to “run” seconds later, but it was too late to stop the plane’s descent.
In a 2018 advisory, the FAA had recommended, but did not mandate, operators of several Boeing models, including the 787, to inspect the locking feature of the fuel cutoff switches to ensure they could not be moved accidentally.
The Air India preliminary report said the airline had not carried out the FAA’s suggested inspections as it was not a mandate.
In an internal memo on Monday, Air India CEO Campbell Wilson said that the investigation into the crash is “far from over”.
He added that the airline is open to further inquiries and warned against “premature conclusions”.
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