What was found
MAIN DOOR HANDLE: WITH DOOR IN FULLY UP POSITION, DOOR HANDLE WILL NOT ROTATE TO CLOSE AND LATCH THE DOOR. THE HANDLE WILL NOT MOVE AT ALL. NO CHECK DOORS CAS. ONLY CABIN DOOR OPEN CAS. PROCEDURE N1 CABIN DOOR OPEN CHECKLIST STEP 4 - LIGHTS DO NOT FLASH. FOUND CABIN DOOR LATCH/LOCK OUT OF ADJUSTMENT. PERFORMED CABIN DOOR LATCH/LOCK SYSTEM ADJUSTMENT /TEST. OPERATIONAL CHECKS SATISFACTORY NO DISCREPANCIES NOTED AT THIS TIME ALL WORK PERFORMED IAW CESSNA 680A AMM 52-10-04.