Fuselage – Mid Avionics Bay – Modification
Proposal for consultation. Not binding until EASA issues the final AD; the requirements can still change.
- Published
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of affected BD-500-1A10 and BD-500-1A11 aeroplanes must modify the mid avionics bay by applying sealant as per ACLP Service Bulletin BD500-530017 Issue 001. This modification must be completed within 2,450 flight hours from the AD's effective date. Stakeholders should monitor the consultation period ending on 21 October 2026 and submit any comments to EASA before that date.
Summary
EASA Airworthiness Directive PAD No. 26-112 is a proposed directive addressing water ingress issues in the mid avionics bay of Airbus Canada Limited Partnership BD-500 series aeroplanes, specifically BD-500-1A10 and BD-500-1A11 models. The directive targets serial numbers 50001 through 50088 for the BD-500-1A10 and 55001 through 55476 for the BD-500-1A11. It mandates modifications to prevent fluid infiltration that could lead to system failures and increased flight crew workload.
What changed
This proposed Airworthiness Directive introduces a requirement to apply sealant modifications in the mid avionics bay area, as detailed in ACLP Service Bulletin BD500-530017 Issue 001. It reduces the compliance time compared to the previous Canadian AD CF-2026-16, which it concurrently revokes. The directive mandates completing the modification within 2,450 flight hours after the effective date.
Why it matters
The directive is critical for operators and maintenance organizations to prevent water ingress that can cause cascading failures of essential avionics systems, potentially compromising flight safety. Compliance ensures continued airworthiness and reduces the risk of in-flight system losses and diversions. It also aligns European requirements with Canadian regulations while imposing a more urgent compliance timeframe.
More for Airbus BD-500 (A220 Series)
All 123- EASA AD CF-2026-49Engine Controls – Throttle Quadrant Assembly – Throttle Lever Jamming - ReplacementOct 12, 2026
- EASA AD CF-2026-45Wings – Discrepant Fasteners at Wing to Fuselage Joint - AmendmentSep 11, 2026
- EASA AD CF-2026-40Time Limits/Maintenance Checks – New and Revised Airworthiness Limitations TasksSep 2, 2026
- EASA AD CF-2026-36Fuselage – Skin Assembly – Discrepant Fasteners at Air Data System Probe Doubler - ReplacementAug 13, 2026
Get the next one by email
New ADs and bulletins for Airbus BD-500 (A220 Series), Canada BD-500-1A10 and Canada BD-500-1A11, summarized like this page, every Monday.