What was found
DURING ACCEPTANCE INSPECTION UPON DELIVERY FROM THE CZECHOSLOVAKIA SOCIALIST REPUBLIC, EXTERNAL DAMAGE WAS NOTED WHERE THE AFT FUSELAGE RESTS IN THE TRAILER TAIL DOLLY. INTERNAL INSPECTION OF THE FUSELAGE REVEALED DEFORMED AND TORN FUSELAGE FRAME MEMBERS NR 11, 12, AND 13. SUBSEQUENT INSPECTION OF THREE OTHER RECENTLY ACQUIRED AIRCRAFT REVEALED SIMILAR DAMAGE. THE SUBMITTER SUGGESTS TWO POSSIBLE CAUSES FOR THIS DAMAGE. FIRST, THAT THIS DAMAGE OCCURRED DUE TO LACK OF LOAD DISTRIBUTION ON THE AFT FUSELAGE WHILE BEING TRANSPORTED IN THE TRAILER. SECOND, THAT THE DAMAGE OCCURRED DURING THE MANUFACTURING PROCESS. PART NUMBERS OF AFFECTED FRAMES: FRAME NR 11- A102006L (LT), A102006P (RT) FRAME NR 12- A102007L