What was found
SUPPLEMENTAL INFORMATION: ***CORROSION*** FWD CARGO COMPARTMENT LH SIDE PLATE STA 500B+15 TO 500F+2.5 / CORROSION ON L/H SIDE FWD CARGO ZEE CHANNEL (SIDE PLATE) AT NUMEROUS LOCATIONS. MEASURE'S .020' AT THE DEEPEST POINT. FOUND TO BE OUT OF LIMITS IAW SRM 53-00-53-1A-2. REMOVED DAMGE ZEE CHANNEL; LOCATED; DRILLED; AND DEBURRED NEW ZEE CHANNEL. INSTALLED NEW ZEE CHANNEL AND REPAIR SPLICE AT STA 500D-500I. REF; SRM 51-40-05; 51-40-02; AND 53-00-53-2R-5. 57575U 11/30/17 IAW BOEING DWG 143A7500