Ok guys...straight from the mouth of a previous pilot turned auditor....

There is not magic is getting audited. If you make good money, you have unreimbursed employee business expenses, the chances are you might get looked at. WHY...

Because when you return get compared to the average W-2 employee, your numbers will be out of whacked, thus upping your score...

Its really simply.....Send in documentation and prove the deductions and you are done.