I haven't had time in my 30 mins allowed for lunch to read all the post's however!!!!
The story goes the cowl may have been bumped at BHX by unkown source, so there maybe a dispute to the second comment.
The aircraft had to do a last minute maneovre (Runway change) in which the aircraft became un-stable in its approach which resulted in a 107% overspeed of Eng 2 and Auto thrust was disengaged along with various fault messages appeared!
So later post's I saw reference Cowl damage induced by engine running at excessive speed may be true.
No blades were lost according to the report but lots of damage to the cowl and the N1 fan!!!!