What was found
NR 3 PACK DOOR CUT OUT UPPER AFT CORNER SKIN LOOKS TO BE CRACKED. PERFORMED HFEC OF SUSPECTED DAMAGED AREA, REF BOEING NTSPM 06-10-.01 PROCEDURE 11. CONFIRMED CRACK DEFECT INDICATION AND MARKED LENGTH. SHGN 02NOV20 06:31 MEM U. DUCT IN PACK 3 BAY REMOVED TO FOM AND PLACED IN PACK 3 BAY OUT OF THE WAY. SHGN 02NOV20 21:09 MEM U. THIS EVENT REQUIRES AN SDR STRP 02NOV20 21:09. MEM U SHGN 02NOV20 23:39 MEM U. REMOVED DAMAGE IN REFERENCE TO MD10 SRM 53-50-00 STRP 02NOV20 23:39. MEM U SHGN 02NOV20 23:53 MEM U. VERIFIED ALL DAMAGED IS REMOVED WITH HFEC, PER MD11 NDTSPM PT6 STRP 02NOV20 23:53. MEM U FACT 04NOV20 10:32 MEM. REPAIRED NR 3 PACK DOOR CUTOUT SKIN IN THE UPPER AFT CORNER, IAW EA 1-5300-T0357828 P1 AND SRM 53-20-15-2R REPAIR 3.