What was found
DURING A C-CHECK IN YUL, THE ANGLE AT FS 39, BETWEEN STRINGER 21R-21L WAS FOUND TO BE CORRODED BEYOND LIMITS. MAINTENANCE REMOVED THE ANGLE AT FS 39, BETWEEN STRINGER 21R-21L, IAW SRM 51-21-42 AND REPLACED THE ANGLE AT FS 39, BETWEEN STRINGER 21R-21 IAW SRM 51-25-04. (M)