What was found
DURING FLIGHT APPROX 8 MINUTES FROM LANDING, FLIGHT NURSE STATED THE LT SLIDING DOOR HAD POPPED OPEN IN FLIGHT. PILOT SLOWED THE ACFT AND FLIGHT NURSE WAS ABLE TO RELATCH THE DOOR WITHOUT LANDING. APPROX 5 MINUTES FROM FINAL DESTINATION, THE SAME LT SLIDING DOOR HANDLE CAME UP BUT THE DOOR DID NOT OPEN. ACFT LANDED AT DESTINATION WITHOUT FURTHER INCIDENT. MX WAS NOTIFIED: THE DOOR LATCH WAS ADJUSTED, LUBED AND OPERATIONALLY CHECKED PRIOR TO FLIGHT. A MX CHECK FLIGHT WAS CONDUCTED FOR THE MX PERFORMED ON THE LT SLIDING DOOR: NO ANOMOLIES WERE NOTED AND ACFT WAS RETURNED TO SERVICE.