What was found
THE AIRSTAIR DOOR OF THIS AIRCRAFT CLOSES INTO THE CARGO DOOR. CRACKS WERE FOUND IN THE CARGO DOOR IN THE JAMB AGAINST WHICH THE AIRSTAIR CLOSES AND SEALS. THE CARGO DOOR IS A BONDED ASSEMBLY AND THE JAMB IS A PART OF THIS BOND ASSEMBLY. THREE CRACKS WERE FOUND IN THE JAMB, ONE IN EACH UPPER CORNER AND ONE IN THE LOWER AFTER CORNER. THIS DOOR, WHILE IT IS A STANDARD MFG PART WAS INSTALLED IN THIS AIRCRAFT BY STC AT ABOUT 5130 HOURS AIRCRAFT TOTAL TIME. TOTAL TIME ON THE DOOR TODAY IS APPROX. 8000 HOURS.