The plane in question was a 5.5-year-old Boeing 787-8 with the registration LN-LND. The parts are believed to have come from the left engine, a Rolls-Royce Trent 1000, a model that has been plagued with problems.
Link about the problems: https://www.theengineer.co.uk/rolls-royce-problems-trent-100...
Cracking problems in the intermediate pressure (IPT) section of the turbine have plagued the engine since early 2016, five years after its launch. Unscheduled groundings of Trent 1000-powered aircraft cost Rolls-Royce some £450m last year, and Horwood said that addressing the problem was “the single most important issue” currently facing the company.
One of Rolls-Royce’s most important potential customers for Trent 1000, Air New Zealand, recently announced that it has opted for General Electric power-plants for a new batch of 787-10 airliners, although its 787-9 fleets still fly with Trent engines.
I'm reminded of all the jokes Jeremy Clarkson makes at Rolls Royce's expense...