Delta pilot under investigation for failed breath test

WILMINGTON, NORTH CAROLINA - The Federal Aviation Administration is investigating whether a pilot for a Delta Air Lines regional carrier failed a breath test in North Carolina before boarding his Atlanta-bound flight. <br> <br> The 28 passengers aboard Atlantic Southeast Airlines Flight 4240 were removed at around 6:40 a.m. Sunday. That was nearly a half-hour after the scheduled departure from the Wilmington International Airport. All passengers were diverted to other flights. <br> <br> Airport Director John Rosborough could not confirm whether the co-pilot of the twin-engine plane failed the test. <br> <br> Officials have not identified the pilot. <br> <br> FAA guidelines say crew members may not have more than a 0.04 blood alcohol level and may not drink alcohol within eight hours before duty.