Aviation Safety Letter: Issue 3/2020

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!

Aviation Safety Letter survey: We want to hear from you!

Reader feedback, improve the ASL, anonymous, 5 minutes to complete.

Invitation to participate in the CANFLY online study

ACE lab, CANFLY, cognitive factors, situation awareness, virtual flight environments, predictive of critical incidents.


TSB Final Report A19W0099—Mid-air collision

182N aircraft, Schleicher ASK 21 glider, visual contact lost. (See PDF for condensed version)

TSB Final Report A19Q0096—Collision with terrain

Rans S-6ES Coyote II, flying at low altitudes. (See PDF for condensed version)


Best practices for test-flying an ultralight aeroplane

Plan your test flight, select an airport, fit test pilot, aircraft is airworthy, low and high-speed taxi tests, pre-flight inspection, in-flight emergency procedures.

2020-2021 Flight crew recency requirements self-paced study program

421.05(2)(d) of the CARs, flight crew, satisfies the 24-month recurrent training program requirements, to be retained by the pilot.


2020-2021 Remotely piloted aircraft system (RPAS) recency requirements self-paced study program

901.56(1)(b)(iii) or 901.65(1)(b)(iii) of the CARs, satisfies the 24-month recurrent training program requirements, RPAS, to be retained by the pilot.



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:
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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