Software link suspected in Airbus A220 engine blowouts
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October 24, 2019 - by Tim Hepher Reuters for financialpost.com
A probe into a series of engine failures on Airbus's smallest jet, the A220, is studying whether a software change set off unexpected vibrations that damaged fast-moving parts and forced three emergency landings, people familiar with the case said.
The airline Swiss briefly halted its fleet of A220 jets for checks on Oct 15 after a third flight in as many months was forced to divert with engine damage.
Engine maker Pratt & Whitney also expanded checks on similar engines worldwide.
I was asked “Looking at Flightradar24 we can see that since the most recent uncontained #engine failure #Swiss and #airBaltic are flying below 30,000'. Why?" Exactly, flying out of the Danger zone for 1st stage of LPC... #A220 #CSeries #Airbus #avgeek #airline #PrattWhitney #GTF pic.twitter.com/teDo51g59i
— Sylvain Faust (@sylvainfaust) October 23, 2019
Investigators are focusing their attention on recent changes in engine software that may have caused parts that compress air inside the engine to be set in a way that caused mechanical resonance or destructive vibrations, two of the people said...
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