What was found
MAIN CABIN DOOR VERY DIFFICULT TO LATCH CLOSED BOTH FROM THE INSIDE AND OUTSIDE. ONLY OCCURS INTERMITTENTLY BUT MORE THAN HALF OF THE TIME. SOMETIMES IT'S PERFECTLY NORMAL, OTHER TIMES IT TAKES EXCESSIVE FORCE AND TWO PEOPLE. NO VISIBLE DAMAGE TO THE DOOR NOR WEIRD NOISES. RIGGED THE LOWER PINS WE HAD TO ADJUST ALL OF THE UPPER/MIDDLE/LOWER FWD AND AFT PINS IAW DOOR LATCHING/LOCKING SYS AMM 52-10-43. ALL OPS CHECKS OF THE CLOSING/OPENING OF THE DOOR FROM THE INTERIOR AND EXTERIOR WERE GOOD.