What was found
YIP - DURING SCHEDULED CHECK, VISUAL INSPECTION REVEALED CRACK IN LEFT WING LOWER SURFACE PLANK NR 4, WS 264, AT JOINT BETWEEN PLANK NR 3 AND 4. ROUTED OUT CRACKED AREA, MANUFACTURED AND INSTALLED REPAIR PER SRM 57-2-1, FIG 3, SHEET 15. SEALED REPAIR. LEAK CHECK SATISFACTORY. (M)