Aviation Safety Letter: Issue 1/2020

The Aviation Safety Letter (ASL) is going through some changes. Previously, the ASL was only available in PDF, but starting with issue 3/2019, it’s now also available in HTML. This change makes it easier to share articles with others—but more importantly, will make it easier to search for specific topics.

You’ll notice that the ASL’s look has been updated. If you receive an ASL e-bulletin notification email, you’ll soon find an improved email with links directly to content. If you aren’t subscribed, we encourage you to sign-up online.

Have a great aviation photo? Send it to TC.ASL-SAN.TC@tc.gc.ca for a chance to be featured on the cover page of an upcoming issue of the ASL!

COVID-19 message

Staying safe, working together, TC measures and response.

Helicopter terrain awareness and warning system (HTAWS)

Aircraft global positioning system (GPS), audio-visual caution, warning information, helicopters operators operating at night in IMC.


Ultralight safety—New best practices guides now available

Reporting and analysis of accidents, pilot operating handbook (POH), best practices guides: cross-country flight, maintenance and operations.

Stabilized approaches in VFR

VFR landing accidents in GA, failing to achieve a stabilized approach, proper go-around, TC flight test guide—Private pilot licence—Aeroplane.


David Charles Abramson memorial (DCAM)—Flight instructor safety award

Flight instructor safety award presented to Mr. Jack Proctor of Seneca College School of Aviation.

Visual flight rules flight into deteriorating weather and collision with terrain—TSB final report A17P0170

Mooney M20D aircraft, mountainous terrain, search-and-rescue services delayed. (See PDF for condensed version)


Collision with terrain—TSB final report A19O0026

Robinson Helicopter Company R66, adequate visual reference to the ground, night VFR, flight plan. (See PDF for condensed version)

Wing lift strut assembly failure and collision with terrain—TSB final report A19C0026

Ski-equipped Piper J3C-65 aircraft, VFR flight, maintaining aircraft, restraint system, baggage and cargo properly secured. (See PDF for condensed version)



The Aviation Safety Letter is published by Transport Canada, Civil Aviation. The contents do not necessarily reflect official government policy and, unless stated, should not be construed as regulations or directives.

Letters with comments and suggestions are invited. All correspondence should include the author’s name, address and telephone number. The editor reserves the right to edit all published articles. The author’s name and address will be withheld from publication upon request.

Please address your correspondence to:

Jim Mulligan, Editor
Aviation Safety Letter
Transport Canada (AARTT)
330 Sparks Street, Ottawa ON K1A 0N8
E-mail: TC.ASL-SAN.TC@tc.gc.ca
Tel.: 613-957-9914
Internet: canada.ca/aviation-safety-letter


Some of the articles, photographs and graphics that appear in the Aviation Safety Letter are subject to copyrights held by other individuals and organizations. In such cases, some restrictions on the reproduction of the material may apply, and it may be necessary to seek permission from the rights holder prior to reproducing it. To obtain information concerning copyright ownership and restrictions on reproduction of the material, please contact the Aviation Safety Letter editor.

Note: Reprints of original Aviation Safety Letter material are encouraged, but credit must be given to Transport Canada’s Aviation Safety Letter. Please forward one copy of the reprinted article to the editor.

Electronic distribution:
To subscribe to the Aviation Safety Letter e-Bulletin notification service.

To purchase a Print-on-Demand (POD) version (black and white), please contact:

The Order Desk
Transport Canada
Toll-free number (North America): 1-888-830-4911
Local number: 613-991-4071
E-mail: MPS1@tc.gc.ca

Sécurité aérienne — Nouvelles est la version française de cette publication.

© Her Majesty the Queen in Right of Canada, as represented by the Minister of Transport (2020).

ISSN: 0709-8103
TP 185E