http://abcnews.go.com/US/american-eagle-pilot-suspected-intoxicated-off-flight/story?id=18133679#.UOc0EHdj6So

"An American Eagle pilot who was preparing to fly from Minneapolis to New York City was arrested today after failing a breathalyzer test."

"The pilot was doing a pre-flight check when confronted by officers, Hogan said. A breathalyzer test was administered, although it was unclear whether it took place on board the aircraft."

"In Minnesota, the legal BAC limit for pilots is .04 -- much lower than the limit for drivers of .08."

Under FAA regulations, all pilots must inform the FAA if they are convicted of DWI or lose their license as a result of refusing a breath test. This applies even if the person was not flying at the time (Similar to the CDL rules apply even if you weren't in a commercial vehicle at the time)