Nothing out of the ordinary on the 7200.9 drives, I did lose one myself that was in an external case. About 2.5 years old, was on almost continuously the last 6 months of it's life. Head stack died. It was a 250. Have it in a drawer at work till I see a donor come through that is compatible. Nothing on it worth spending the time looking for one... You're probably talking $1000 and up for the repairs, and you'll still have a lovely paperweight after the recovery. head replacements are not a long term repair, it's a case of get it spinning and get the data.... then toss the brick.....