If more than one type of errors are to be associated with a single record then you will need a table for the error types and a child table for the error types and the comments for a record. A combo box can be used in a sub form used for data entry in the child table. This combo box will have its row source from the table of error types.
hope above is clear to you.
See here for table relationships
http://www.functionx.com/access/Lesson36.htm
See here for sub forms
http://office.microsoft.com/en-001/a...010098674.aspx