Issue: From 1977 to 2009, 35 airworthy aeroplanes were flown into the ground while under pilot control. The aviation industry refers to these as controlled flight into terrain (CFIT) accidents. There have been 100 fatalities and 46 serious injuries as a result of these CFITs. To date, risk information alone has not motivated all of the Canadian aviation industry to voluntarily equip key passenger aircraft with existing technologies that would help mitigate risks associated to CFITs.
Description: The proposed regulatory amendments would introduce requirements for the installation of Terrain Awareness Warning Systems (TAWS) equipped with an Enhanced Altitude Accuracy (EAA) function in private turbine-powered aeroplanes configured with six or more passenger seats, excluding pilot seats, and in commercial aeroplanes configured with six or more passenger seats, excluding pilot seats. Operators would have two years from the date on which the Regulations come into force to equip their aeroplanes with TAWS and five years to equip with EAA.
Cost-benefit statement: The vast majority of Canadian passenger aeroplane operators already respect these proposed amendments. The present-value cost of equipping and retrofitting the remainder of the fleet with TAWS and EAA is estimated to be approximately $59M ($43M for TAWS and $16M for EAA). The present-value benefit (e.g. prevention of fatalities, serious injuries, and material loss) is estimated to be approximately $216M. These proposed amendments should yield a net benefit of approximately $157M over a 10-year period from full implementation.
Business and consumer impacts: There would be some cost associated with the implementation of these proposed amendments, but the risks associated with CFIT accidents would be reduced, resulting in fewer deaths, serious injuries and material loss. Businesses and consumers would therefore benefit from the increased safety of aircraft. Moreover, airlines travelling to the United States and to the European Union would be
in compliance with similar regulations in those jurisdictions, strengthening Canada’s ability to compete economically in those markets.
Domestic and international coordination and cooperation: These proposed amendments would align the Canadian regulation with those of other jurisdictions. The United States, the European Aviation Safety Agency (EASA) and the International Civil Aviation Organization (ICAO) have all introduced legal requirements and standards regarding TAWS. Canadian aircraft operators operating in other jurisdictions are expected to comply with the more restrictive regulations of these jurisdictions. Impacts on imports of new aircraft would be minimal.
Read full article at Canada Gazette archives here