English Translation Version for Reference Only Number:CTSO-C147a Date of approval:Apr 29 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. Traffic Advisory System(TAS)Airborne Equipment 1.Purpose. This China Civil Aviation Technical Standard Order (CTSO)is for manufacturers applying for Traffic Advisory System(TAS)Airborne Equipment CTSO authorization (CTSOA).This CTSO prescribes the minimum performance standards(MPS)that Traffic Advisory System(TAS)Airborne Equipment 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. 3.Requirements New models of TAS airborne equipment identified and -1- English Translation Version for Reference Only CAAC CTSO-C147a manufactured on or after the effective date of this CTSO must meet the MPS qualification and documentation requirements in Sections 2.1 and 2.2 of RTCA/DO-197A Minimum Operational Performance Standards for An Active Traffic Alert and Co...