DT679/680 REQUEST RS TO CHECK COUPLER GNAL REQUEST RSD TO UNCOUPLE AND COUPLE DT 679/680 M2 TO MC COUPLER TO ECK THE PIN. SIGNAL WILL JOIN INVESTIGATION TO CHECK THE COUPLER ~~~~~ DT679/680 REQUEST RS TO CHECK COUPLER     Found M2-M2 SIG electric power coupler head out of alignment.RSW assist to adjust electrical coupler head.SIG system checked ok. Done by Johua. 24/09/20