EASA AD CF-2025-48
Equipment / Furnishings — Insulation Installation — Insufficient Overlap
Summary
Canadian Airworthiness Directive CF-2025-48 addresses insulation installation issues on Airbus Canada Limited Partnership BD-500-1A10 and BD-500-1A11 aircraft. The directive targets insufficient overlap of insulation blankets between frame 27 and 29 near STR 23 LH, which could compromise fire protection. It mandates replacement of specific insulation blanket part numbers to restore proper fire resistance.
What Changed
CF-2025-48 introduces a new requirement to replace insulation blankets P/N PFCS1-4302-535 and P/N PFCS1-4302-465-N0001 with P/N KC25865941001-101 on affected aircraft. This replacement ensures the insulation blankets have the required minimum 6-inch overlap to prevent fire penetration. The directive also prohibits installation of the old insulation blankets on BD-500-1A10 and BD-500-1A11 models from the effective date.
Why It Matters
This directive is critical for operators and maintenance organizations to maintain cabin safety by ensuring fire protection insulation meets regulatory standards. Insufficient overlap in insulation blankets could allow fire to penetrate the fuselage faster, endangering occupants during post-crash fire events. Compliance helps reduce risk and ensures adherence to Canadian Aviation Regulations.
What To Do
Operators must remove and replace the affected insulation blankets within 36 months or 7,500 flight hours from the effective date, whichever occurs first. Replacement must follow Airbus Canada Service Bulletin BD500-258007, Issue 001 or later approved revisions. After the effective date, the old insulation blankets are not permitted for installation on the specified aircraft models.