NTSB investigates recent Airbus A220 engine failures
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October 26, 2019 - by airlinerwatch.com
An investigation for a series of Airbus A220 failures suggests that a software change might have caused unexpected vibrations on the engines and at least three emergency landings.
On Oct. 15, the Lufthansa Group subsidiary SWISS International Airlines grounded its A220 fleet for more than a day after the third flight was forced to divert or return to the departure airport with engine damage.
In one of the incidents, compressor debris hit the engine casing and created a hole. In the most recent incident, the engine parts which fell apart because of vibration escaped from the back leaving the engine house intact.
The NTSB-led investigation focused on...
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