EASA SIB 2008-29
Ground De- / Anti-Icing of Aeroplanes; Intake / Fan-blade Icing and effects of Fluid Residues on Flight Controls
Summary
EASA Safety Information Notice No. 2008-29 is an informational document addressing ground de-icing and anti-icing of aeroplanes, with a focus on intake and fan-blade icing and the effects of fluid residues on flight controls. It highlights risks associated with snow and slush accumulation in engine intakes and on compressor/fan blades during extended ground operations in freezing precipitation, which can lead to engine malfunction or flameout. The notice applies broadly to all operators and maintenance organizations, emphasizing the need for proper procedures and training.
What Changed
This notice updates the previous EASA Safety Information Notice No. 2006-09 by providing enhanced guidance on recognizing and mitigating intake and fan-blade icing hazards, as well as the effects of anti-icing fluid residues on flight controls. It introduces detailed operational recommendations and stresses the importance of coordination between operations and maintenance to prevent incidents related to frozen deposits on aircraft surfaces and engines.
Why It Matters
The guidance is critical for aviation professionals because frozen contaminants can severely degrade aircraft aerodynamic performance and engine reliability, potentially leading to accidents. Smaller operators and those unfamiliar with icing conditions are particularly vulnerable, making adherence to these recommendations essential for safety. Understanding and implementing effective de-icing and anti-icing procedures helps ensure regulatory compliance and operational safety during winter conditions.
What To Do
Operators and maintenance organizations should review and update their de-icing and anti-icing procedures in line with manufacturer recommendations and this notice. Training programs for pilots and ground staff must incorporate the guidance on intake and fan-blade icing recognition and mitigation. Coordination between operations and maintenance teams should be enhanced to ensure thorough contamination checks and appropriate responses before flight. No explicit compliance deadline is stated, but the notice references the applicability of EU-OPS1 from 16 July 2008.
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