Published: Sep 11, 2012 12:47 PM EDT
Updated: Sep 11, 2012 5:40 PM EDT

LEE COUNTY, Fla- Lee County commissioners have voted to formally ask the county clerk for an audit of Medstar.

The medical air-lift service reportedly sent out $3 million worth of incorrect bills. Since Medstar's helicopter was not properly certified by the FAA, roughly 100 patients over the past year were billed for flights when they shouldn't have been. 

Last month, Medstar abruptly announced it was suspending service and firing all its pilots.

At today's board meeting, the county manager briefed commissioners on Medstar's issues and took questions from commissioners regarding the billing mistakes.

Some commissioners expressed shock over how long the problem went on and how they were alerted to it.

Meantime, FAA investigators are expected to do their own audit into Medstar's bills.