31.   This disparity reflects a bizarre anomaly in the otherwise elaborate web of federal aviation safety regulations.

32.   To come to reality, portions of the plan would have to be approved by Dayton, then face scrutiny by federal aviation, transportation and environmental agencies.

33.   Tolley said he would seek informal meetings with Clayton County Solicitor Keith Martin and federal aviation officials on behalf of Lasseter.

34.   Unless new clues are found, some veteran federal aviation experts said on Wednesday that it was increasingly possible that the crash might never be solved.

35.   While Bush spoke, federal aviation, intelligence, and law enforcement authorities struggled to understand how they had been caught so completely by surprise.

36.   Without a flashing red beacon, the building is in violation of federal aviation law.

37.   An official report on the cause is not due for six months, but federal aviation accident investigators say they have ruled out sabotage as the cause.

38.   Federal aviation officials were also considering major changes in the way Americans travel, such as possibly banning early seat selection and carryon baggage.

39.   Federal aviation officials tightened security on U.S. planes serving East Asia, imposing a ban Sunday on carry-on aerosols and most liquids.

40.   Geneva-based Swiss World Airways, facing financial troubles, has suspended flights until further notice, a Swiss federal aviation official said Wednesday.