Potential de-/anti-icing fluids offered at European airports not-fully conforming to their initial qualification
Superseded. Comply with CF-2026-45, which replaces this document.
- Published
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
De-icing service providers should report any fluid performance issues to national authorities and EASA, quarantine suspect fluid batches if necessary, and consider using fluids neat rather than diluted near the Lowest Operational Use Temperature. Aeroplane operators are advised to perform pre-take-off checks for fluid condition and request re-treatment if fluid failure is detected before the expected holdover time, reporting such incidents accordingly. No specific compliance deadlines are stated.
Summary
EASA Safety Information Bulletin 2025-09 addresses concerns about potential de-icing and anti-icing fluids offered at European airports that may not fully conform to their initial qualification standards. This bulletin is relevant to aeroplane operators and de-icing service providers using these fluids, but it does not target specific aircraft types or engine models. It highlights possible discrepancies in fluid performance that could affect holdover times and aerodynamic characteristics under certain environmental conditions.
What changed
This new bulletin raises awareness of the possibility that some de-/anti-icing fluids at European airports might not perform as originally qualified, based on inconclusive ad-hoc testing results. It does not introduce mandatory regulatory changes or airworthiness directives but provides guidance and recommendations to manage the potential risks associated with these fluids.
Why it matters
The bulletin is important for aviation professionals because non-conforming de-/anti-icing fluids could lead to earlier-than-expected fluid failure or slightly increased aerodynamic interference, potentially impacting aircraft safety margins during ground operations in winter conditions. Operators and service providers need to be vigilant in monitoring fluid performance to ensure effective ice protection and compliance with holdover times.
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