Question regarding non editable fields on DS 156

[nayu_c]

Hi,
I recently applied nonimmegrant visa for my parents. While filling out ds 156 for my father I have entered wrong passport issue date. Now I can not modify that field as filed 1-14 are not editable now.
Any suggestions what to do?
thanks

[sln]

ur parents can let folks at consulate know about the error. They will modify it on the day of interview.