English Translation Version for Reference Only Number:CTSO-C132a 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. Minimum Operational Performance Standards for Geosynchronous Orbit Aeronautical Mobile Satellite Services (AMSS)Avionics 1.Purpose. This China Civil Aviation Technical Standard Order (CTSO)is for manufacturers applying for geosynchronous orbit Aeronautical Mobile Satellite Services (AMSS)Aircraft Earth Station (AES)equipment CTSO authorization (CTSOA).This CTSO prescribes the minimum performance standards (MPS)that Geosynchronous Orbit Aeronautical Mobile Satellite Services (AMSS)Avionics 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 -1- English Translation Version for Reference Only CAAC CTSO-C132a new authorization in accordance with section 21.353 of CCAR-21-R4. 3.Requirements New models of AMSS AES equipment identified and manufactured on or after the effective date of this CTSO must meet the MPS quali...