Aviation Safety Letter: Issue 4/2020

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.

TC’s continued work on strengthening aviation safety across the Americas and Caribbean States

Promote the safety of Canadians abroad, ICAO NACC, memorandum of collaboration (MoC), developing Haiti’s safety oversight system, improving aviation safety of the ECCAA.


Service difficulty reporting and general aviation

General aviation safety program, voluntary reporting working group, AC 521-009, SDR submission, service difficulty reporting program, most important tool to gauge safety and reliability, WSDRS is the quickest way to submit an SDR.

Remotely Piloted Aircraft Systems (RPAS), otherwise known as drones

New hazards and challenges, Part IX of the CARs, two operating environments and some associated rules, the elimination of the distinction between commercial and recreational users.


David Charles Abramson Memorial (DCAM) Flight Instructor Safety Award

COVID 19, no DCAM award for 2020.

TSB Final Report A19P0059—Engine power loss, forced landing into trees

Cessna 182E, carburetor ice accumulation. (See PDF for condensed version)


TSB Final Report A19W0105—Controlled flight into terrain

Cessna 208B Grand Caravan, pilot decision making, poor weather conditions in mountainous terrain. (See PDF for condensed version)

TSB Final Report A20Q0023—Collision with power lines

Cessna 150M, no licence or a night rating, low altitude flight. (See PDF for condensed version)


TC announces strengthened requirements for ELTS on aircraft in Canada

Regulatory changes, all Canadian aircraft to be equipped with a digital ELT capable of broadcasting simultaneously on frequencies of 406 MHz and 121.5 MHz, with some exceptions.



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