What was found
L-4 DOOR LOWER GATE CORRODED ALONG EDGE AND FWD POCKET INNER SURFACE. FOUND TO BE OUT OF LIMITS IAW SRM 52-10-02 FIG. 101 DETAIL IV. REMOVED LOWER GATE FROM L-4 DOOR IAW SRM 51-40-02. REMOVED SEAL FROM GATE ASSEMBLY IAW AMM 52-09-01. RECEIVED NEW GATE ASSEMBLY. LOCATED AND DRILLED IAW SRM 51-40-05, AND SRM 51-40-08. INSTALLED SEAL ON NEW GATE ASSEMBLY IAW AMM 52-09-01. INSTALLED NEW GATE ASSEMBLY ON L-4 DOOR IAW 51-40-02. CLASSIFIED AS A MAJOR REPAIR.