u mean ur external case fried? or the hard drive itself fried?
if its just ur external case then you can just swap it for another one...
i didnt specify what type of hard drive it is
just giving serial number doesnt really say anything...
here are examples of external cases for hard drives...
this is a 3.5'' one
http://www.newegg.com/Product/Product.aspx?Item=N82E16817182155
and this is for a 2.5'' one
http://www.newegg.com/Product/Product.aspx?Item=N82E16817816013
this are just examples... ive never used these products so these ones specifically i cannot recommend them
u just swap the external case and it should work!
if instead u dont want to buy another external case to see if it still works
u can take the hard drive out of the external case and try plugging it directly to a computer and see if it works
if it does then the case controller is fried not the hard drive itself