What was found
DURING A-CHECK IN MIAMI, FLORIDA AT AVBORNE HEAVY MAINTENANCE DISCREPANCY AS FOLLOWS, N/R 4418 CRACK AT FR 21 STR 9R INTERNAL. REMOVED FASTENERS OUT OF DAMAGE AREA AS PER A-300 SRM 51-30-30. REMOVED DAMAGE AT FRAME 21 STR 9R AS PER A-300 SRM 53-10-10 (2 INCHES LONG). HEAT TREATMENT MATERIAL 2024 0.063 AS REQUIRED AS PER A-300 SRM 51-40-30. INSTALLED FRAME REPAIR AT FR NR 21, STG 9R MAT USED 2024 T3 .063 PO 3797 AS PER A-300 SRM 53-10-10 FIG 715 SIZE OF REPAIR 17 INCHES LONG BY 6 INCHES WIDE.