At its triennial meeting in Montreal in early October, the ICAO Assembly–which includes representatives from all 187 ICAO member nations–approved a more flexible approach to the application of aircraft noise regulations.
The FAA last week issued the final environmental impact statement for the New York, New Jersey, Philadelphia airspace redesign, a major project that seeks to reduce delays in and out of the New York and Philadelphia metropolitan areas.
TAG Aviation has introduced a quiet flying program to reduce noise experienced by neighborhoods around London-area Farnborough Airport. It is running the program, which aims to reduce noise by requiring more accurate flight paths, among other things, on a trial basis between early May and the end of this month. The company intends to have the new arrival and departure procedures formally adopted by the UK Civil Aviation Authority.
Cessna Citation S550 Bravo, Dillon, Mont., May 3, 2007–The ATP-rated owner-pilot and a passenger were killed when the Citation Bravo crashed on a circling instrument approach at Dillon in VMC. A witness reported hearing a loud engine noise followed by a “plop.” He said the engine noise was loud, diminished, then got loud again. He spotted a large cloud of black smoke and a fire outside the airport boundary fence.
All jet and transport-category airplanes (those with an mtow of 12,500 pounds or more) for which application of a new type design is submitted on or after Jan. 1, 2006, will have to meet new noise certification levels. The FAA today issued its final FAR Part 36 Stage 4 noise levels that were originally proposed in December 2003.
A final rule published last Friday harmonizes FAR Part 36 light, propeller-driven airplane noise certification standards with international standards and provides uniform noise certification requirements for airplanes certified in the U.S. and Europe, according to the FAA. This amendment will also simplify airworthiness approvals for import and export purposes, it added.
Manufacturers of newly designed helicopters will have to meet slightly revised U.S. noise standards, effective with applications for new designs or major design changes submitted after June 1. The FAA revised FAR Part 36 to harmonize helicopter noise standards with those of the JAA and ICAO.
A group of airports, local governments and residents has requested that Congress order the complete phase-out of all Stage 1 and Stage 2 aircraft regardless of weight. Sen. Frank Lautenberg (D-N.J.) has submitted such legislation.
Business aircraft crews and passengers are generally aware of the danger of prolonged exposure to noise in terms of hearing loss. Now there is a growing body of evidence that prolonged exposure to a combination of high-intensity and low-frequency noise may pose far more serious health threats.
New designs for small business turboprop singles could be included in proposed changes to FAR Part 36 noise-certification rules. The more stringent levels are aimed primarily at reducing noise from newly designed primary training aircraft, but new turboprop singles certified under Part 23 would also be covered. The FAA said the more stringent requirements are intended to keep limits within the capability of current technology.