What was found
C-CHECK, VERT STAB UPPER RUDDER HINGE POINT RT STRUCTURE HAS CRACK AT CORNER. REMOVED DAMAGED CORNER COVER, FABRICATED REPAIR COVER IAW 737 SRM 51-30-30, 51-20-02, AND 51-40-02, TREATED AND PRIMED IAW 737 SRM 51-20-06, INSTALLED IAW 737 SRM 51-40-02.