Box 14 is generally for informational purposes, yes.

Ass-u-me-ing when doing tax returns is generally not the best idea.  I'd ask my client what that *loan* is all about.  YMMV

Thanks Lisa. So, just out of curiosity, so at some point last year, the employer took off of the employee's paycheck this loan and he is putting it in the W2 so the employee will have a record of it?

Only the employer and/or employee can answer that question.

If there's indeed an employee loan, there could be tax implications.  Many a time, employers  (even large MNCs) are not be aware of the applicable tax provisions and may not, therefore, have structured such loans accordingly and/or done the reporting correctly.  Even if it turns out not to be relevant for the current year, it may not something that should go into your carryover notes.

As Anna says, you can't assume when it comes to taxes.  Every number and notation is there for a reason.  Every one of those must be understood and rationalized to either report or omit on the return.