81.   The consolation here is, despite its problems, the air traffic control system is safe.

82.   The breakdowns could be minor, or they could disable everything from air traffic control systems to financial networks, power grids, hospitals and home appliances.

83.   The current air traffic system relies on a patchwork of ground-based radar to show the positions of aircraft as they crisscross the country.

84.   The computer is one of the newer ones in the air traffic system, about seven years old.

85.   The current air traffic system does not alert controllers if a transponder has been turned off.

86.   The Federal Aviation Administration, which operates the tower at Kennedy and other parts of the air traffic control system, released transcripts Wednesday and played tapes for reporters.

87.   The FAA plane and the small amount of commercial traffic expected during the midnight hours will be tracked by air traffic control systems not participating in the exercise.

88.   The Federal Aviation Administration wanted to upgrade its air traffic systems.

89.   The GAO report says the aviation agency failed to gather enough information to determine how to improve the air traffic control system at a reasonable cost.

90.   The first goal is to standardize and tie together traffic systems used by Valley cities, the county and the state.