The legal drama surrounding Pilot Flying J involves a wide cast of characters — including one with wings.

An affidavit that led to a federal raid of the Knoxville-based truck-stop chain indicates that Pilot was forced to buy a private airplane after one of its customers discovered it was being shorted on fuel rebates.

That alleged transaction, which was described in secretly recorded conversations, could come under scrutiny as prosecutors seek to make a case against Pilot executives.

The federal investigation became public in April, when FBI and IRS agents raided Pilot's Knoxville facilities.

Read more from our news partners at the Knoxville News Sentinel.