Auto Flight System — Airplane Flight Manual Limitations and Procedures — Velocity Decay during Low Level Altitudes Capture in One Engine Inoperative Conditions
- Published
- Effective
- Deadline
- Replaces
- 2020-02
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of affected Bombardier CL-600-1A11, CL-600-2A12, and CL-600-2B16 aircraft must update their AFMs with the specified revisions approved by Transport Canada within 30 days of the directive's effective date. Flight crews must be notified of these changes and operate the aircraft accordingly. Continued compliance with the updated procedures is mandatory to maintain airworthiness.
Summary
The Auto Flight System — Airplane Flight Manual Limitations and Procedures — Velocity Decay during Low Level Altitudes Capture in One Engine Inoperative Conditions is a Canadian Airworthiness Directive CF-2020-02R1 addressing Bombardier CL-600 series aircraft, specifically models CL-600-1A11, CL-600-2A12, and CL-600-2B16. It focuses on the risk of significant airspeed decay during altitude capture modes (ALTSEL, ASEL, ALTS CAP) when operating with one engine inoperative. The directive mandates updates to the Airplane Flight Manual (AFM) to include new limitations and procedures to mitigate this unsafe condition.
What changed
This revision CF-2020-02R1 supersedes the original CN CF-2020-02 by removing applicability to Bombardier models 604, 605, and 650, as these do not use the affected altitude capture modes. It updates the AFM revision references for the applicable CL-600-1A11, CL-600-2A12, and CL-600-2B16 aircraft and clarifies the required procedural changes to address velocity decay during single-engine altitude capture.
Why it matters
This directive is critical for operators and maintenance teams to ensure safe aircraft operation during single-engine climb phases using automatic flight modes. Failure to comply could result in unsafe airspeed decay, potentially compromising flight safety. Compliance ensures that flight crews are properly informed and equipped to manage engine failure scenarios during altitude capture, reducing operational risks.
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