CTSO-C21b Aircraft Turnbuckle Assemblies andor Turnbuckle Safetying Devices.pdf

English Translation Version for Reference Only Number:CTSO-C21b Date of approval:Jun 4 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. Aircraft Turnbuckle Assemblies and/or Turnbuckle Safetying Devices 1.Purpose. This China Civil Aviation Technical Standard Order (CTSO)is for manufacturers applying for aircraft turnbuckle assemblies and/or turnbuckle safetying devices CTSO authorization (CTSOA).This CTSO prescribes the minimum performance standards (MPS)that aircraft turnbuckle assemblies and/or turnbuckle safetying devices 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 a.Minimum Performance Standards.Turnbuckle assemblies and/or -1- English Translation Version for Reference Only CAAC CTSO-C21b turnbuckle safetying devices that are to be so identified and that are manufactured on or after the date of this CTSO must meet the standards set forth in Sections 3 and...