English Translation Version for Reference Only Number:CTSO-C92c Date of approval:Dec 8 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. AIRBORNE GROUND PROXIMITY WARNING EQUIPMENT 1.Purpose. This China Civil Aviation Technical Standard Order (CTSO)is for manufacturers applying for airborne ground proximity warning system (GPWS)equipment CTSO authorization(CTSOA).This CTSO prescribes the minimum performance standards(MPS)that airborne ground proximity warning system (GPWS)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 airborne GPWS equipment identified and -1- English Translation Version for Reference Only CAAC CTSO-C92c manufactured on or after the effective date of this CTSO must meet RTCA Document No.DO-161A “Minimum Performance Standards for Airborne Ground Proximity Warning Equipment "dated May 27 1976. (a) Additions. (i)Fire Protectio...