EASA AD CF-2022-60
SUPERSEDED BY TCCA AD CF-2023-44
Summary
The Canadian Airworthiness Directive CF-2022-60 addresses the impact of 5G C-band wireless technology interference on Bombardier BD-700-1A10 and BD-700-1A11 aircraft models. It mandates modifications to the aircraft flight manual (AFM) and restricts the use of certain minimal equipment list (MMEL) items to mitigate radio altimeter signal disruptions caused by 5G signals. This directive aims to ensure safe aircraft operation during takeoff, approach, and landing phases in airspace where 5G C-band deployment affects radio altimeter reliability.
What Changed
This directive introduces new AFM limitations and prohibits the use of specific MMEL items related to the crew alerting system when operating in U.S. airspace affected by 5G C-band interference. It requires operators of affected Bombardier BD-700-1A10 and BD-700-1A11 aircraft to incorporate these changes within 30 days of the effective date. Additionally, previously approved alternative methods of compliance (AMOCs) for related directives are recognized for this directive.
Why It Matters
For aviation professionals, this directive is critical to maintaining flight safety by addressing potential false or unavailable radio altimeter data caused by 5G interference. Operators and maintenance teams must ensure compliance to prevent increased pilot workload and compromised automatic flight control system performance during critical flight phases. Non-compliance could lead to unsafe flight conditions and regulatory penalties.
What To Do
Operators of Bombardier BD-700-1A10 and BD-700-1A11 aircraft must update their AFMs with the specified limitations and comply with the MMEL restrictions within 30 days from November 18, 2022. They must also monitor NOTAMs for affected airports and ensure no flights are authorized into or out of U.S. airports where 5G interference is indicated. Approved AMOCs from related directives may be used to meet compliance requirements.
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