Someone mentioned the crew 'reporting vibration' on that engine. . .Just to be a devils advocate, I wonder just how long that vibration was there before the bearing failed? Just asking.. .One other thing although the aircraft was the first 738 in Ryanair. I believe the engine is new, the latest dash number even. Could this problem be specific to that particular engine mark? Are there problems ahead for CFM? Or just a one off? . .Idle speculation really!