What was found
UPPER CENTER WING DRY BAY PANEL LANDING FOR PANEL 521BT HAS AREAS OF BARE METAL AND CORROSION. REMOVED CORROSION IAW RD 8/4-57-441 AND RD 8/4-57-879. REMOVED GANG CHANNELS FOM IAW RD 8/4-57-879. CONFIRMED AFFECTED AREAS CRACK FREE REF NTM 51-00-06-910-801 PT 1 AND RD 8/4-53-879 STEP 4. REAMED 12 HOLES TO .402 AND 2 HOLES TO .465" IAW RD 8/4-57-879. CONFIRMED REAM HOLES CRACK FREE IAW NTM 51-00-06-910-801, PT 1. COUNTERSUNK REAM HOLES IAW RD 8/4-57-879. ALODINED IAW RD 8/4-57-879. INSTALLED BUSHINGS IN 14 LOCATIONS IAW RD 8/4-57-879 AND APPLIED ALODINE AND PRIMER IAW RD 8/4-57-441.