Pilot Fatigue—A Study on the Effectiveness of Flight and Duty Time Regulations for Professional Pilots in Canada
Bibliographic record
Abstract
In Canada, federal regulations govern the maximum time a professional pilot may fly an aircraft (flight time) and be on duty at his or her workplace (duty time). This report summarizes the findings of a study conducted in 2016-2017, which analyzed the effectiveness of flight and duty time (FDT) regulations for professional pilots in Canada. More specifically, this study was conducted to assess whether the current FDT regime adequately protects the safety of air crews and passengers onboard Canadian aircraft. This study focuses on Canadian operators conducting commercial operations under Part VII of the Canadian Aviation Regulations (CARs) as aerial work, air taxi, and commuter and airline operators. It analyzes whether federal laws adequately regulate pilot fatigue and whether there are any gaps within the CARs. Because the CARs regulate FDT differently depending on the category of operator, this study also considered potential safety trends with respect to pilot fatigue in various categories of carriers; the effects of standby duty; the risks associated with being awake for extended periods of time; and whether less experienced pilots are more vulnerable to pilot fatigue in comparison to more experienced pilots. Five key informants, who worked as professional pilots in Canada, were interviewed in the course of this study to substantiate certain hypotheses. Following these interviews, this report was produced. It focuses on five aspects of FDT regulations in order to understand their positive or adverse impact on pilot fatigue: (1) work schedules; (2) pilot remuneration; (3) fatigue and stress; (4) company safety culture and work environment; and (5) industry issues.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.003 | 0.008 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.002 |
| Science and technology studies | 0.006 | 0.002 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".