Strangely, gas turbines supplying Hungary which showed a more friendly posture towards Russia didn't break all of a sudden... I obviously can't prove that the Russia controlled companies that operated this equipment deliberately broke anything but in the past outages like this were relatively rare.
The thing is that it was a scheduled maintenance. So presumably it was expected
But you can theorize that Russians were being too picky with the repairs which normally possible wouldn't
But even if they did, EU and Canada withholding the turbine is playing to their game, don't see the purpose
Still, anything is possible... cloak and daggers
https://www.reuters.com/article/ukraine-crisis-nordstream-si...
https://financialpost.com/commodities/energy/oil-gas/germany...
https://www.reuters.com/business/energy/ukrainian-group-sue-...