GATINEAU, QC, Feb. 15, 2013 /CNW/ - The Transportation Safety Board of
Canada (TSB) is encouraged by responses to its 2012 recommendations
arising from its investigation into an approach and landing accident at
the Chicoutimi/St-Honoré Airport in Quebec. In that accident, the
aircraft crashed short of the runway while conducting a non-precision
approach, killing the two crew members (see Investigation Report A09Q0203).
"This tragedy only further highlights the need for critical
improvements, and we're pleased to see that our recommendations are
helping bring Canada in line with international standards," said Wendy
Tadros, Chair of the TSB. (See the Watchlist.)
Today, Canadian pilots landing at airports conducting non-precision
approaches use approach charts that depict a series of minimum
altitudes to use when descending to the runway. Pilots approach the
runway stepping down to each of these minimum altitudes. The Board
found that these procedures could put aircraft at risk of approach and
TSB Recommendation A12-01 called for Transport Canada (TC) to require
non-precision approach charts to show the optimum path, the stabilized
constant descent angle (SCDA), pilots should use to safely descend to
the runway. NAV CANADA, which is responsible for publishing approach
charts, has advised that non-precision approach charts will soon depict
the optimal vertical path to be flown. The Board rated the response to
this recommendation as satisfactory intent (see the assessment of Recommendation A12-01).
The Board's second recommendation, A12-02, called for Transport Canada
to require the use of SCDA approach techniques by Canadian operators in
the conduct of non-precision instrument approach procedures. In
response, TC is proposing short, medium and long-term measures to
encourage Canadian operators to adopt the SCDA technique. The Board
rated the response to this recommendation as satisfactory intent (see the assessment of Recommendation A12-02).
A guide to the TSB's rating system and the full text of the TSB recommendations are posted on the TSB website.
The TSB is an independent agency that investigates marine, pipeline,
railway and aviation transportation occurrences. Its sole aim is the
advancement of transportation safety. It is not the function of the
Board to assign fault or determine civil or criminal liability.
SOURCE: Transportation Safety Board of Canada
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