Also, many runway incursions that necessitated a go-around were the result of someone failing to advise their intentions.īefore going any further, let’s test your knowledge! Enter the following frequencies in the space below that describes their correct use: 121.5 122.75 123.2 126.7 131.8 123.4. Twenty-nine percent of "reported" infractions involved failure to notify intentions when it was mandatory (MF communication zones and control zones). Evasive action was required in most cases. Here are some figures that may surprise you: From 1995 to 1998, 39 percent of the "reported" near misses occurred because someone used the wrong frequency or did not use their radio when they should have. Many incidents and accidents happen because pilots didn’t use their radio when they should have done, or they used the wrong frequency. Selecting the right frequency is not only essential to aviation safety, it also shows good airmanship. But have you ever asked someone whose voice you recognized on the air to select frequency 123.4 MHz? And have you ever noticed that there were a lot of NORDO aircraft in the circuit? Or perhaps you’ve used 126.7 MHz at an aerodrome not published in the CFS? These are only a few examples of frequencies being used incorrectly. We refer to the Canada Flight Supplement (CFS) and Canada Air Pilot (CAP), or we just use the frequency assigned by ATC. Most of the time, selecting the right frequency is pretty straightforward. By Brigitte Ouellet, Regional System Safety Specialist, Quebec Region
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