English Translation Version for Reference Only Number:CTSO-C204a Date of approval:Jan 14 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. Circuit Card Assembly Functional Sensors using Satellite-Based Augmentation System(SBAS)for Navigation and Non-Navigation Position/Velocity/Time Output 1.Purpose. This China Civil Aviation Technical Standard Order (CTSO)is for manufacturers applying for Satellite-Based Augmentation System (SBAS) Circuit Card Assembly (CCA)Functional Sensor CTSO authorization (CTSOA).This CTSO prescribes the minimum performance standards(MPS)that Circuit Card Assembly Functional Sensors using SBAS CCA for Class Beta position/velocity/time (PVT)must first meet for approval and identification with the applicable CTSO marking. 2.Applicability. This CTSO affects new application submitted after its effective date. Major design changes to article approved under this CTSO will require a new authorization in accordance with section 21.353 of CCAR-21-R4. -1- English Translation Version for Reference Only CAAC CTSO-C204a 3.Requirements New models of SBAS CCA functional sensors identified and manufactured on or after the effe...