What was found
(CAN) AFTER T/O THE CREW REPORTED AN UNSAFE R1 DOOR INDICATION. THE FLIGHT RETURNED AND LANDED OVERWEIGHT. RESOLUTION REATTACHED CONNECTOR FOR SENSOR 12MJ AT PSCU CONNECTOR BOX. DUMMY CONNECTOR BACK IN STOWAGE POSITION. GAP CHECKED OK IAW AMM TASK 52-71-11-820-801-A, CONNECTOR 12MJ, ACFT CLEANED. GROUND SCAN CARRIED OUT, NO FAULT INDICATED, PSCU TEST OK. OPS CHECK OF DOOR IND CARRIED OUT, CHECKED OK.