659/660 M2-M2 coupler unable to positive ~~~~~ 659/660 M2-M2 coupler unable to positive     Check and found coupler pin was dented.Notification to RSW for checks on pin-243019.RSW assessed & confirmed pins still serviceable.Further checks found projection out of criteria by 0.5mm.Readjust to criteria,couple back ok.Function test,SIR able to set. Done by Arthur Sam. 28/10/22