English Translation Version for Reference Only Number:CTSO-C159c Date of approval:Sep 13 2018 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. Next Generation Satellite Systems (NGSS)Equipment 1.Purpose. This China Civil Aviation Technical Standard Order (CTSO)is for manufacturers applying for Next Generation Satellite Systems (NGSS) equipment CTSO authorization (CTSOA).This CTSO prescribes the minimum performance standards(MPS)that Next Generation Satellite Systems (NGSS)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-21R4. 3.Requirements. New models of NGSS equipment (including the Aircraft Earth -1- English Translation Version for Reference Only CAAC CTSO-C159c Station (AES)transceiver equipment auxiliary equipment and associated antenna)identified and manufactured on or after the effective date of this CTSO must meet the MPS qualification and documentation requirements in RTC...