What was found
DURING C CHECK, UPPER RUDDER TAB LE SKIN CLOSE OUT IS CRACKED AND CORRODED. REMOVED UPPER RUDDER TAB FOR ACCESS IAW B-727 M.M. 27-20-11. REMOVED 6 DAMAGED SKINS, LOCATED, AND DRILLED NEW SKINS IAW B-727 SRM 55-40-2. PARTS ALODINED AND PRIMED IAW B-727 SRM 51-10-2 AND INSTALLED IAW B-727 SRM 51-30-2. REINSTALLED TAB IAW B-727 M.M. 27-20-11. INSTALLED UPPER RUDDED TAB IAW B-727 M.M. 27-20-11. OPS CHECK GOOD IAW B-727 M.M. 27-20-0.