What was found
THE LT MLG LEG DEPARTED THE AIRCRAFT DURING LANDING ROLL-OUT. SUBSEQUENT INVESTIGATION DISCLOSED A FATIGUE FAILURE AT THE FORWARD ATTACH POINT OF THE GEAR LEG U-BOLT, BELLANCA P/N 1-9805. THIS CONDITION INDUCED THE INSTANTANEOUS FAILURE OF THE REAR ATTACH POINT, AND CENTER MOUNT BOLT, P/N MS2005-32. THE BELLANCA 7EAC INSPECTION GUIDE REFERENCES REPLACEMENT OF THE MLG ATTACH HARDWARE AT 500-HOUR INTERVALS. REVIEW OF THE AIRCRAFT MAINTENANCE RECORDS ESTABLISHED THAT THE ATTACH BOLTS HAD BEEN IN SERVICE FOR 1,702 HRS.