hitachi arm massive bad sectors just in one head area

[Jirbun]

Hi
Heads clean and working perfect with all heads on donor drive,platter looks good,this errors also if I load PSHT RDMT virtual translator.
User said it's happened in second no falling or hit to disk,the bad sectors it's all over one head area from beginning to end,what is the logic here ?
Does those bad sectors can be recoverd with no corrupted files ?
Thanks

Attachments

[Amarbir[CDR-Labs]]

Hi ,
Which head is this .How many platters are there in this drive ?

[Jirbun]

Which head is this .How many platters are there in this drive ?

Head 0 from two platters,I had another hitachi drive with the same symptom with this drive I took the platters out and it was seem good so I guess it's a common problem.