What was found
DURING C-CHECK, FOUND CORROSION ON LONGERON 27R AT GROUND AIR CONDITION CONNECTOR PANEL DOME NUT AT Y=42. REMOVED DOME NUTS, REMOVED CORROSION AND FOUND CORROSION WAS BEYOND LIMITS. REMOVED AND REPLACED LONGERON 27R IAW DC-8 SRM 51-1-20D. INNER DOOR DOUBLER WAS CORRODED BEYOND LIMITS. REMOVED CORROSION, FABRICATED REPAIR IAW DER APPROVED ENGINEERING SKETCH A96-R09 AND INSTALLED IAW DC-8 SRM 51-1-20D.