What was found
DURING HEAVY MAINTENANCE, FRAME 16 DOOR STOP 7 RT HOLE 3 INBOARD LOWER FOUND CRACKED. REMOVED AND REPLACED THE INTERCOSTAL FITTING AND FASTENERS ON DOOR STOP NR 7 IAW SRM 51-42-11, DWG R53113118, ISSUE F, SHEET 4, TABLE 2, REPAIR CODE A0, FIRST REPAIR STEP. AND DWG D53114097 ISSUE SHEET A.