Safety Publications Tool

CF-2025-54R1 : Navigation – 5G C-Band wireless Broadband Interference with Radio Altimeter System when operating in Canadian airspace affected by 5G C-Band wireless signals

Number CF-2025-54R1
Issued by Canada  Canada
Issue date 2026-04-13
Effective date 2026-04-15
EASA approval number
ATA Chapter 34
Approval Holder
/ Type Designation
  • DE HAVILLAND AIRCRAFT OF CANADA LTD.
    • DHC-8
      • DHC-8-101
      • DHC-8-102
      • DHC-8-103
      • DHC-8-106
      • DHC-8-201
      • DHC-8-202
      • DHC-8-301
      • DHC-8-311
      • DHC-8-314
      • DHC-8-315
Revision This AD revises TCCA AD CF-2025-54, issued 5 November 2025.
Correction Not applicable
Supersedure None
Publication(s) and related information DeHavilland Aircraft of Canada (DHC) Service Bulletins (SB) 8-11-115, Revision A, dated 3 December 2012 or later revisions approved by the Chief, Continuing Airworthiness. DHC SB 8-34-258B and 8-53-89B dated 5 December 2025 or later revisions approved by the Chief, Continuing Airworthiness. DHC SB 8-53-86C, 8-53-87F, 8-34-257D and 8-53-90D dated 19 December 2025 or later revisions approved by the Chief, Continuing Airworthiness. DHC SB 8-34-256E, dated 23 January 2026 or later revisions approved by the Chief, Continuing Airworthiness. DHC SB 8-34-254G dated 28 January 2026 or later revisions approved by the Chief, Continuing Airworthiness.
Remarks Comments regarding this AD should be referred to the Safety Information Section, Certification Directorate, EASA;
E-mail: ADs [at] easa.europa [dot] eu