What was found
DURING A SCHEDULED INSPECTION AT AERO CORP., A 1 INCH CRACK WAS FOUND ON THE RIGHT WING UPPER SKIN PANEL FROM EDGE OF ACCESS PANEL NR 1410 A LANDING, THROUGH FASTENER HOLE AT AFT OUTBOARD QUADRANT OF ACCESS OPENING. STOP DRILLED CRACK, FABRICATED DOUBLER 7075T6 .0375 15 .75 INCH BY 29 INCHES IAW DC9 SRM 57-03, FIG 23. DRILLED DOUBLER, COUNTERSUNK AND DEBURRED IAW DC9 SRM 51-10-4. ALODINED AND PRIMED IAW DC9 SRM 51-10-3, INSTALLED DOUBLER IAW DC9 SRM 57-03, FIG 23. NON-ROUTINE REF NR 027N1-0058.