I get this when i run smartctl -a /dev/hda

SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Short offline Completed without error 00% 763 -
# 2 Extended offline Completed: read failure 70% 740 20595773
# 3 Short offline Completed without error 00% 739 -
# 4 Short offline Completed without error 00% 715 -
# 5 Short offline Completed without error 00% 691 -
# 6 Short offline Completed without error 00% 667 -
# 7 Short offline Completed without error 00% 643 -
# 8 Short offline Completed without error 00% 619 -
# 9 Short offline Completed without error 00% 595 -
#10 Extended offline Completed without error 00% 574 -
#11 Short offline Completed without error 00% 572 -
#12 Short offline Completed without error 00% 548 -
#13 Short offline Completed without error 00% 524 -
#14 Short offline Completed without error 00% 500 -
#15 Short offline Completed without error 00% 476 -
#16 Short offline Completed without error 00% 452 -
#17 Short offline Completed without error 00% 428 -
#18 Extended offline Completed without error 00% 407 -
#19 Short offline Completed without error 00% 405 -
#20 Short offline Completed without error 00% 381 -
#21 Short offline Completed without error 00% 357 -


Is there any problems with this line
# 2 Extended offline Completed: read failure 70% 740 20595773