1. EASA HighIWC EASA-HighIWC Final Meeting Project Overview: Context, Objectives, Deliverables EASA HighIWC (EASA.2011.OP.28) Presented by Airbus - CNRS (LATMOS/BOM – LaMP – SAFIRE) December 2012 EASA.2011.OP.28

2. This document and the information contained are EASA HighIWCContractors’ property and shall not be copied or disclosed to any third party without EASA HighIWC Contractors’ prior written authorization EASA HighIWC EASA-HighIWC Final Meeting Project Overview: CONTEXT December 2012EASA.2011.OP.28Page 2 Commercial aircraft have been experiencing in-service events (jet engine power-loss events observed in tropical convection) while flying in the vicinity of deep convective clouds since at least the early 1990s. In 2004, an industry working group was established to look at the effects of supercooled large droplets and mixed phase icing conditions on engines. The areas of aircraft that have shown sensitivity to ice particles icing threat are heated probes and engines. Ice accretion will depend on surface temperature, Liquid Water Content, Ice Water Content, air speed, etc….

3. This document and the information contained are EASA HighIWCContractors’ property and shall not be copied or disclosed to any third party without EASA HighIWC Contractors’ prior written authorization EASA HighIWC EASA-HighIWC Final Meeting Project Overview: CONTEXT December 2012EASA.2011.OP.28Page 3 Notices NPRM10-10 and NPA11/03 & NPA11/04 have been issued by FAA on June 2010 and EASA on March 2011, respectively, in order to propose a new regulation to cover ice particle threat to aircraft. FAR33 Appendix D (Ice Crystals & Mixed Phase Clouds): proposed regulations envelope (Altitude vs. Temperature) proposed regulations envelope (TWC vs. Altitude)

4. This document and the information contained are EASA HighIWCContractors’ property and shall not be copied or disclosed to any third party without EASA HighIWC Contractors’ prior written authorization EASA HighIWC EASA-HighIWC Final Meeting Project Overview: CONTEXT December 2012EASA.2011.OP.28Page 4 International HIWC field experiment International HIWC field experiment originally planned in Jan.-Mar. 2013 (then delayed by one year) out of Darwin. Use of highly instrumented G-II for in situ cloud µ  of HighIWC convective clouds. G-II with 100 flight hours planned. HAIC (European L2 project) Funding of transit + 50 flight hours of F20. HAIC (European L2 project) will join HIWC bringing F20 to Darwin equipped with multi-beam 95GHz Doppler cloud radar and a sophisticated state-of-the-art in situ µ  package, flying at an additional flight level to G-II one. HAIC: Funding of transit + 50 flight hours of F20. EASA-HighIWCfunding the scientific and technical preparatory work of HAIC EASA-HighIWC contribute to HAIC in funding the scientific and technical preparatory work of HAIC (=analysis of A340 data from 2010 and definition/preparation instrumental payload for Falcon 20). HAIC and EASA-HighIWC within international approach

5. This document and the information contained are EASA HighIWCContractors’ property and shall not be copied or disclosed to any third party without EASA HighIWC Contractors’ prior written authorization EASA HighIWC EASA-HighIWC Final Meeting Project Overview: OBJECTIVES December 2012EASA.2011.OP.28Page 5 (= Notices of proposed rulemaking) Define and integrate payload of Falcon 20 - EHWG & Recommendations - - HAIC/HIWC International F/T Campaign-2014 Airbus F/T Campaign-2010 EASA-HighIWC HAIC L2 Project Assessment & gap analysis of the environment proposed in theNPA2011-03 (AppendixP) ValidationorAmendment ofAppendix P (or D) Validate or propose modifications of the mixed phase and glaciated icing environment as defined in App. D & P. Assess the proposed mixed phase and glaciated icing environment as defined in Appendix D and P in light of the analysis of the test flights conducted by Airbus & Env. Can. (Darwin & Cayenne, 2010). HAIC and EASA-HighIWC within international approach NPRM10-10 NPA 2011 03 & 04 In-service events F/T Developement Plan & ready to fly aircraft Data Analysis, Assessment vs. App P Gap Analysis & Recommendations

6. This document and the information contained are EASA HighIWCContractors’ property and shall not be copied or disclosed to any third party without EASA HighIWC Contractors’ prior written authorization EASA HighIWC EASA-HighIWC Final Meeting Project Overview: OBJECTIVES December 2012EASA.2011.OP.28Page 6 The project is structured into 3 work packages:... will define & prepare instrumental payload for the Falcon 20 in order to participate to the HIWC / HAIC study. … will assess the proposed mixed phase and glaciated icing environment as defined in Appendix D & P. EASA-HighIWC work plan structure

7. This document and the information contained are EASA HighIWCContractors’ property and shall not be copied or disclosed to any third party without EASA HighIWC Contractors’ prior written authorization EASA HighIWC EASA-HighIWC Final Meeting Project Overview: Deliverables & Milestones Sequencing December 2012EASA.2011.OP.28Page 7

8. This document and the information contained are EASA HighIWCContractors’ property and shall not be copied or disclosed to any third party without EASA HighIWC Contractors’ prior written authorization EASA HighIWC December 2012 Ice Water Content of clouds at High altitude (EASA HighIWC, EASA.2011.OP.28) This document and the information contained are EASA HighIWC Contractors’ property and shall not be copied or disclosed to any third party without EASA HighIWC Contractors’ prior written authorization Project funded by the European Aviation Safety Agency (EASA) EASA.2011.OP.28Page 8