What was found
DURING AN INSPECTION IN MSP, MAINTENANCE FOUND TWO CRACKS 1 INCH BY 1 INCH IN THE RADIUS OF THE LT WING RIB LOWER ATTACH FLANGE (P/N 27-31023). APPROXIMATE LOCATION IS WS 81 AND BETWEEN NS 130 AND 141. STOP DRILLED CRACK, FABRICATED AND INSTALLED AN APPROPRIATE SIZED 3 INCH BY 1 INCH BY .050 INCH 2024-T3 REPAIR DOUBLER AND APPLICABLE FILLER PLATES WHERE NEEDED. ALL WORK DONE IAW AEROTECH DESIGNS EA01-96125. (M)