Almost no planes fly into the New York City area using a high-tech navigational system the FAA developed for the airports nine years ago, although it makes planes less noisy, arrive on time more often and burn less fuel, according to a federal report.
The system, called performance-based navigation, uses GPS, software and new Federal Aviation Administration procedures to fly much more precise routes.
Planes that use it can descend more steeply, so they don't have to fly as low over residential neighborhoods.
But only 1 percent of flights at JFK and La Guardia are using it, and less than that for Newark, although the congested airports have the worst delays in the country, the Department of Transportation inspector general has found.
"Where the technology is in place, it defies common sense for the FAA to be using it less than 1 percent of the time in New York airspace," said Joe Sitt, chairman of the airport advocacy group, Global Gateway Alliance.
Most major airports have been slow to adopt the system, but Washington's Reagan National Airport uses it to direct planes to fly less over neighborhoods and more over the Potomac River.
It's been difficult to adapt the procedure at New York City airports because not all airlines have the equipment to use it, sources said.
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