What was found
R-1 DOOR WILL NOT LATCH CLOSED. INSTALL SLIDE PIN IN R1 DOOR IAW AMM 52-11-00, REMOVED R1 DOOR SLIDE FOR INSPECTION OF DOOR,OK TO INSTALL R1 DOOR SLIDE REINSTALLED SLIDE PER B757 AMM 25-66-00 AND REMOVED PIN, REMOVED FOD FOUND IN DOOR STOP.