41.   He said federal aviation authorities are requiring the increase in security for both airports and air carriers within the United States.

42.   His medical certificate will now be reviewed, according to federal aviation rules.

43.   One of them, a federal aviation chief, said commuters would be flying to work in personal aircraft.

44.   The cause of the mixup is being investigated by federal aviation officials.

45.   The checks were carried out by the federal aviation authority in the Krasnoyarsk.

46.   The lawsuits against American claim the deadly crash resulted from violations of federal aviation regulations and airline policy.

47.   U.S. federal aviation officials said they would allow air travel in the United States to resume Thursday morning, but cautioned travelers to expect slower operations and tight security.

48.   U.S. aerospace company Hughes appears set to win substantial damages after a judge ruled Monday that the federal aviation regulatory agency violated an air traffic control contract.

49.   A ValuJet airplane was forced to make an emergency landing one day after federal aviation officials concluded scathing hearings on the embattled economy airline.

50.   ADC officials contacted by AFP would not brief journalists and said federal aviation authorities had set up a crisis team at the airport, which would handle all queries.