Cold Weather Operations — Introduction of Low Ground Temperature Wing Anti-Ice Procedure
- Published
- Effective
- Deadline
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of affected Bombardier Challenger 600 aircraft must amend their Aircraft Flight Manuals within 30 days of the effective date by incorporating the specified revisions. Flight crews must be informed of the new operating limitations requiring wing anti-ice activation at 5 degrees Celsius or below. Compliance with these changes is mandatory before conducting take-offs in applicable conditions.
Summary
Canadian Airworthiness Directive CF-2018-24 introduces a new low ground temperature wing anti-ice procedure for Bombardier Inc. model CL-600-1A11 (Challenger 600) aircraft, serial numbers 1001 through 1085. This directive mandates changes to the Aircraft Flight Manual to enhance safety during cold weather operations. The procedure requires activation of the wing anti-ice system when the outside air temperature is 5 degrees Celsius or below.
What changed
The directive introduces a requirement to amend the Transport Canada approved Aircraft Flight Manual by incorporating PSP 600 Revision A108 or PSP 600-1 Revision 99, or later approved revisions. These revisions add a new operating limitation mandating the activation of the wing anti-ice system at or below 5 degrees Celsius outside air temperature. This is a new regulation aimed at preventing take-off with contaminated wings.
Why it matters
This directive is critical for operators and maintenance teams as it addresses the risk of wing contamination from snow, slush, or ice during prolonged ground operations in cold weather. Failure to comply could lead to premature stall and loss of control during take-off, posing significant safety hazards. Compliance ensures safer flight operations and adherence to Canadian Aviation Regulations.
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