What was found
SJO - DURING C-CHECK, STRINGER 18 LEFT, AFT CARGO COMPARTMENT, BS 727B PLUS 12, WAS FOUND WITH CORROSION. REPAIRED FUSELAGE STRINGER 18 LEFT BETWEEN BS 727B PLUS 5 INCHES AND BS 752 DUE TO CORROSION PER SRM 53-10-3 FIGURE 1. FABRICATED ANGLES AND SPLICE PER SRM 51-20-1 AND 51-10-1, PROTECTIVE TREATMENT PER SRM 51-10-2. REMOVED AND REINSTALLED HI-LOCKS AND RIVETS PER SRM 51-30-2. (M)