What was found
DURING AN INSPECTION IN MSP, MAINTENANCE FOUND A 5 INCH CRACK IN THE RADIUS OF THE 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 A 8.25 INCH BY 3 INCH BY 1 INCH BY .050 REPAIR DOUBLER AND APPLICABLE FILLER PLATES WHERE NEEDED. ALL WORK IAW AERO TECH DESIGNS EA01-96125. (M)