What was found
DURING 12 MO, 2" CRACK FOUND IN AVIONICS PANEL P# 429-030-602-109 (BH429 IPC 53-59 ITEM 005) CABIN SIDE BELOW LH AFT MOUNT OF ADIU, LOCATION APROX. STATION 323” X -3.0” BL UP ON REMOVAL OF ADIU FOUND ADIU HARDWARE RETAINER UNDER RH FWD LEG OF ADIU, AND CRACKING UNDER LH AFT MOUNT OF ADIU. SUSPECT THAT THE STRESS OF RETAINER UNDER RT LEG, PUT STRESS AT LH AFT LEG INDUCING FATIGUE CRACKING AT LH AFT MOUNT PAD, AFTER CLEAN UP DAMAGE ON TOP SIDE OF PANEL IS ABOUT 1 5/8” BY 1 1/2” CENTERED UNDER LH AFT ADIU MOUNT.