Cancellation notice
Civil Aviation Safety Alert (CASA) 2021-08, Issue 02, RDIMS 17921072, 2021-12-23 - Potential Risk of Interference of 5G Signals on Radio Altimeter, is cancelled, effective 2026-08-14.
The updated information and recommendations contained in the above-mentioned document are now included in CASA 2026-08 - Risk of Interference of 5G Signals on Radio Altimeter Following a Voluntary 5G Mitigations Agreement in Canada (RDIMS 21477440), Issue 03, dated 2026-08-14.
Original signed by
Jamie-Lee MacDermid
Executive Director
Standards branch
Civil Aviation