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Dash 8-400 certified by FAA, EASA to stringent noise emission standards

De Havilland Aircraft of Canada Limited announced that the Federal Aviation Administration (FAA) and the European Aviation Safety Agency (EASA) have issued approvals for the Dash 8-400 turboprop aircraft as having met the most stringent noise emission standards.

The aircraft is therefore certified to Stage 5 standards set by the FAA and certified by EASA as having met ICAO Chapter 14 standards. De Havilland explains the Dash 8-400 aircraft was the first propeller-driven aircraft, and also the first regional aircraft in the world, to meet ICAO Chapter 14 standards when it was certified by Transport Canada in 2020.

“The approvals by the FAA and EASA have confirmed that the Dash 8-400 aircraft’s advanced design positions it well ahead of current regional jets and turboprops in delivering low community noise during take-off and landing. Furthermore, new regional jet designs that have been proposed to meet these same standards, are several years away from introduction into service,” said Robert Mobilio, Vice President, Engineering and Quality, De Havilland Canada. “Our fleet of more than 600 delivered Dash 8-400 aircraft will continue to derive benefits from these recertifications since operators will be able to access noise-sensitive airports with fewer limitations and lower noise-related charges without the need for product change to meet the stringent noise emission standards.

The Dash 8-400 aircraft features what De Havilland describes as quiet, swept, six-bladed Dowty propellers on Pratt & Whitney Canada PW150A engines. The Dash 8-400 is also engineered with a newly improved, proprietary Active Noise and Vibration Suppression (ANVS) system that, explains De Havilland, effectively reduces the propeller noise level inside the aircraft to maximize cabin comfort.

“The Dash 8-400 noise emission approvals also offer increased opportunities for urban planners to minimize the impact of commercial aviation on communities while the industry works to develop next-generation propulsion technology such as the hybrid-electric propulsion technology being developed by Pratt & Whitney Canada in collaboration with De Havilland Canada,” added Mr. Mobilio.