English Translation Version for Reference Only Number:CTSO-C115d 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. Required Navigation Performance (RNP)Equipment Using Multi-sensor Inputs 1.Purpose. This China Civil Aviation Technical Standard Order (CTSO)is for manufacturers applying for required navigation performance (RNP) equipment using multi-sensor inputs CTSO authorization (CTSOA).this CTSO prescribes the minimum performance standards (MPS)that required navigation performance (RNP)equipment using multi-sensor inputs must first meet for approval and identification with the applicable CTSO marking. 2.Applicability. (a)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-C115d (b)This CTSO supports performance-based operations using RNP values from RNP 0.3 through RNP 4.0 and advanced RNP functions. (c)This CTSO does not address RNP operations with authorization required (RNP AR) localizer perf...