LONDON (MarketWatch) — Engine maker Rolls-Royce Group PLC on Friday said it would replace a component in Trent 900 engines following its investigation into the cause of an engine failure last week on an Airbus A380 aircraft, and warned that its earnings growth would slow as a result of the problem.

The incident has been embarrassing for Rolls-Royce  and costly for shareholders, prompting a rare mea culpa from the company.