Federal regulators have revoked the licenses of two Northwest Airlines pilots who flew past their Minneapolis destination by 150 miles last week.The Federal Aviation Administration says the pilots violated numerous regulations, including failing to comply with air traffic control instructions and clearances, and operating carelessly and recklessly.First Officer Richard Cole and Captain Timothy Cheney told investigators they lost track of time and place while working on their laptop computers.The pilots have no previous accidents or safety incidents; they have 10 days to appeal.