保证营运人维修单位保留每架航空器所要求的维修/改装/检查记录。
A.The operator's maintenance organization' must make sure that each aircraft has all inspection records. B.Make sure that the required repair /aIteration/inspection documents of each aircraft must be kept by maintenance organization of the operator. C.Ensure that the operator's maintenance organization has retained the required maintenance/alteration/inspection records for each aircraft.正确答案B