AVIATEUR EXPRESS #952 - April 2, 2025

The photo in this edition of "Your photo as the newsletter banner" is by Pierre-Alexandre Sénéchal, which he titled  " Looking towards the future ."

Congratulations to Oierre-Alexandre for this photo of Alicia Chenel taken during a training flight. Alicia's goal is to become a professional pilot.

This photo will be among the finalists in January 2026, presented to an external jury to determine the three winners of the photo competition trophies. It will also be eligible for the end-of-year draw for one of ten prizes from among ALL the photos submitted.

To see all the photos from the 2025 Photo Contest

You too could have your photo featured as a banner on our newsletter and our Facebook page.

Discover the details of this competition

Here is an example of METAR (CYMX, April 26, 2023 at 10:00 a.m. local) which clearly demonstrates the weather conditions we have these days:

METAR CYMX 261400Z 23003KT 25SM BKN047 OVC080 06/01 A3023 RMK SC6AC2 SLP241=

Beautiful morning for a pleasure flight, but beware the temperature is 6C and the dew point is 1C. A perfect recipe for an intense carburettor icing situation, as shown by the following graph taken from document TP2228f_38 of Transport Canada.

This is what happened in this accident of October 9, 2003 in the vicinity of the Buttonville airport. The TSB concluded in their report ( TSB A03O0285 ) that:

1. The temperature and dew point conditions present during the flight most likely resulted in carburetor icing, which caused a loss of engine power.
2. As the engine began to lose power, the pilot turned on the carburetor heat, but noted that this resulted in an even greater loss of power, and turned off the carburetor heat before the hot air had time to melt the ice.

We invite you to consult TSB report A03O0285 for more information.

Photo: Transportation Safety Board

Here is an example of a METAR (CYMX, April 26, 2023 at 10:00 a.m. local time) which clearly demonstrates the weather conditions we may have at this time of the year.:

METAR CYMX 261400Z 23003KT 25SM BKN047 OVC080 06/01 A3023 RMK SC6AC2 SLP241=

A beautiful morning for a pleasure flight, but be careful, the temperature is 6C and the dew point is 1C. A perfect recipe for a situation of intense carburetor icing, as shown in the following graph taken from Transport Canada document TP2228f_38 .

This is what happened in this accident on October 9, 2003, in the vicinity of Buttonville Airport. The TSB concluded in their report ( TSB A03O0285 ) that:

1. The temperature and dew point conditions present during the flight most  likely resulted in carburetor icing, which caused  the engine to lose power.
2. As the engine began to lose power, the pilot turned on the carburetor heat, but noted that this resulted in an even greater loss of power and turned off the carburetor heat before the hot air had time to melt the ice.

We invite you to consult the TSB report A03O0285 to learn more.

Photo: Transportation Safety Board

Transport Canada has released its latest issue of the Aeronautical Information Manual

You can download it by clicking on the following link:

Aeronautical Information Manual TP 14371

Please note that this edition includes changes to the following sections:

• RAC 4.3 - Aerodrome Circuit at Controlled Aerodromes
• RAC 4.5.2 - Procedures for circuits at uncontrolled aerodromes

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