What was found
DURING C-CHECK RT FUSELAGE SKIN AT FRAME 20 STRINGER 18R-19R, 1, DENT AT RIVETS. MAINTENANCE PERFORMED REPAIR OF OUTERSKIN FUSELAGE FRAME 20 BETWEEN STRINGERS 18R AND 19R IAW SRM 53-21-01 AND INITIATED DMI. THE ACFT WAS APPROVED FOR RETURN TO SERVICE.