Apr. 7 -- The Federal Aviation Administration, responding to a wave of protest from residents of Delaware County, proposed changes yesterday in its plan to reroute air traffic leaving Philadelphia International Airport in an effort to reduce the aircraft noise heard on the ground.
The agency said there would be only a small loss of "operational efficiency" to the air-traffic system by directing pilots to use only three departure paths as their jets climb toward cruising altitude after takeoff.
Two weeks ago, the FAA proposed using six paths, or headings, for planes to use when taking off to the west, which would have spread the noise impact over a wider geographic area. The FAA has said it could start using the new departure paths as early as August.
Two Delaware County elected officials criticized the revisions yesterday, calling them inadequate and unacceptable. "What Delaware County wants is for the planes to fly over the river until they reach a 3,000-foot altitude, and, at that point, make their turns over the county, or Jersey, or wherever they are heading," said Andrew J. Reilly, chairman of the Delaware County Council.
"Our experts contend that, by flying planes over Delaware County immediately after takeoff, all you're doing is putting more off-ramps onto the overcrowded highway in the sky."
The new analysis, included in a consultants' report to the FAA, also determined that air traffic departing Philadelphia International at night was light enough that planes could continue to fly down the Delaware River as they do now, reaching 3,000 feet before they turn over residential areas.
"Reducing the number of available departure headings at PHL from six headings to three headings would allow for some relief of the expected noise impacts while minimizing the loss of operational efficiency," the report said.
The report concluded that pilots also could use three or four departure paths, instead of seven, when planes are taking off from Philadelphia to the east. Airplanes always take off and land into the wind, which means they depart to the west about two-thirds of the time in this region.
Operational efficiency refers to the FAA's goal of reducing delays for airliners and other planes that now follow more circuitous, time-consuming paths in the sky before reaching cruising altitude. Philadelphia International and airports in the New York area have some of the worst records for on-time flights, and one reason is the inefficiency of the current air-traffic routing system, the FAA says.
But two opponents of the FAA's flight plan panned much of yesterday's report.
Rep. Joe Sestak (D., Pa.) praised the departure-headings change, but said overall the report fell short. "There's been some progess, but it's inadequate," he said.
Sestak, who has a scheduled meeting with the FAA administrator April 20, said the FAA's environmental-impact statement did not account for the effect of noise on people's health, education and safety, the environment and property values.
"Statistical studies have shown that this level of noise impacts people's health, education, their safety and the environment," he said. "None of this is accounted for in the process."
Sestak said he would support taking the FAA to court to delay the flight-path changes, but "recognizing however, the FAA has won 12 of the 13 times that they have been sued."
Reilly, the Council chairman, stood by his claim that there were no significant operational benefits to be gained by flying planes over the county.
Reilly said the report fell short in three key areas: It did not accurately account for the causes of delays at Philadelphia International Airport; it did not include all aerial traffic in the FAA's model; and it excluded 80 percent of the area's airports.
The effect of changing aircraft departure patterns on Tinicum and other Delaware County communities was contained in an FAA draft environmental-impact statement for its New York-New...
Dec. 21--Tinicum Township residents could hear more noise from airplanes departing Philadelphia International Airport under scenarios outlined by the Federal Aviation Administration in a study...
Delco officials sue to block airspace redesign: They say the FAA didn't fully study environmental effects, and the proposed shift will make only small cuts in delays
Sep. 15--Keeping a vow they made last week, Delaware County officials filed suit yesterday in an effort to stop the Federal Aviation Administration from routing more airplanes over residential areas...
A delay for new flight paths?; Two members of Congress say a plan for new takeoff procedures is unlikely to take effect this fall.
Two area members of Congress said yesterday that despite what the Federal Aviation Administration says, they believed it unlikely that air-traffic controllers would begin using new takeoff...