English Translation Version for Reference Only Number:CTSO-C117b Date of approval:Jun 4 2019 CAAC Approved by:Xu Chaoqun China Civil Aviation Technical Standard Order This China Civil Aviation Technical Standard Order (CTSO)is issued according to Part 37 of the China Civil Aviation Regulations (CCAR-37).Each CTSO is a criterion which the concerned aeronautical materials parts or appliances used on civil aircraft must ply with when it is presented for airworthiness certification. Airborne Windshear Warning And Escape Guidance Systems For Transport Airplanes 1.Purpose. This technical standard order (CTSO)is for manufacturers applying for a CTSO authorization (CTSOA).In it we tell you what minimum performance standards (MPS)your airborne windshear warning and escape guidance systems for transport category airplanes must first meet for approval and identification with the applicable CTSO marking.This CTSO defines performance functions and features for systems providing windshear warning and escape guidance mands based upon sensing the airplane's encounter of such phenomena.It is not applicable to systems that look ahead to sense windshear conditions before encountering the phenomenon nor to systems using atmospheric and/or other data to predict the likelihood of a windshear alert. Appendix 1 of this CTSO describes the MPS for the airborne -1- English Translation Version for Reference Only CAAC CTSO-C117b windshear warning and escape guidance systems for transport category a...