What was found
FLT 872 BGI-JFK, ON GROUND AT JFK, R1 DOOR WILL NOT OPEN. THE TECHNICIAN REMOVED R1 DOOR SLIDE FOR TROUBLESHOOTING, INSTALL SAME REF 25-62-44, OK FOR SERVICE. FOUND DOOR ROLLER DRY, LUBE R1 DOOR ROLLERS WHICH CLEARED THE DOOR JAM. OPS CHECK SATISFACTORY.