What was found
AFTER PARKING, ATTEMPTED TO OPEN THE MAIN CABIN DOOR. WHEN MOVING THE HANDLE UPWARD WITH THE RED BUTTON PUSHED THE HANDLE WAS EXTREMELY DIFFICULT TO MOVE UPWARD. THE AMOUNT OF FORCE REQUIRED WAS ACTUALLY FLEXING THE HANDLE BROUGHT IT UPWARD. AT THE TOP OF THE TRAVEL, THE HANDLE APPEARED TO GET STUCK. LOWERED THE HANDLE AGAIN AND RAPIDLY MOVE HANDLE UPWARD. IT REACHED ALMOST FULL OPEN & AGAIN REQUIRED AN EXCESSIVE AMOUNT OF FORCE TO FULLY RETRACT THE PINS. AMOUNT OF FORCE WAS AGAIN FLEXING THE HANDLE AS PULLED UPWARD. AIRCRAFT WAS AIRBORNE IN COLD TEMPERATURES FOR APPROXIMATELY 2 HOURS. WHEN CLOSING HANDLE EARLIER IN THE DAY WITH WARM TEMPERATURES AND WARM AIRCRAFT SKIN TEMPERATURES, ONE OR SEVERAL OF THE MAIN CABINET DOOR BOLTS COULD BE FELT HUNTING FOR CENTER AS THEY EXTENDED INTO THE HOLES. THERE WAS RESISTANCE IN PUSHING THE HANDLE DOWN TO COMPLETELY LOCK THE DOOR AND FULLY EXTEND THE PINS. TECH HAS PERFORMED MULTIPLE OPERATIONAL CHECKS AND HAS FOUND THE DOOR TO OPERATE WITH NO DISCREPANCIES IAW NJA MCC REQUEST FOR FURTHER TROUBLESHOOTING TECH PERFORMED THE MAIN CABIN DOOR HEALTH CHECK WAS COMPLETED WITH ALL ITEMS WITHIN TOLERANCE AND NO DISCREPANCIES TO NOTE. ALL WORK PERFORMED IAW AMM 52-10-04.