Aviation Safety Letter: Issue 3/2021

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.

If you don’t already receive an ASL e-bulletin notification email, 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!

Competent vs proficient—Which are you?

What’s the difference, how to tell which you are, how to get there.

The dangerous power of power lines: Tips for avoiding collisions and close encounters

Pre-flight prep, distractions, during flight, upon landing, power line strike.


The elements of a successful training program

Why is this important to the student, use scenario based-training, train them to be pilots, incorporate threat and error management.

ASL instructor’s corner

Share past instructing/teaching experiences, tips to increase aviation safety.


TSB Final Report A20W0072—Collision with power line

Harmon Rocket II amateur-built aircraft, low-level flying is a high-risk activity as not all hazards are marked or can be seen. (See PDF for condensed version)

TSB Final Report A20P0060—Collision with power line

Cessna 172M, low-level flying is a high-risk activity as not all hazards are marked or can be seen. (See PDF for condensed version)


TSB Final Report A20P0071—Loss of control during takeoff

Cessna 140, short runway, environmental conditions that decreased the performance of the aircraft, steel lap belt centre bracket. (See PDF for condensed version)

2021-2022 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.



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.: 343-553-3022
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 (2021).

ISSN: 0709-8103
TP 185E