Epson 486SX - Manual (Page 153)

If the program finds one bad track that is not flagged, the
summary would show one track with a write, read error. The
report is followed by a table like this:
Write, Read Error Tracks
Cylinder Head Cylinder Head Cylinder Head Cylinder Head
237 2
Confirm to register the tracks in the Write, Read Error
Track Table as bad tracks.
Do you want to register the error tracks as bad tracks? (Y/N)
To flag the error tracks as bad, select
Y
.
You see a list of the
tracks as they are flagged and these messages:
Flagging bad tracks...
Cylinder is 237, head is 2
Press Enter to return to the menu.
Press to return to the Hard Disk Format Menu.
Physically Formatting a Hard Disk A-11