As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY MX INSP, A DENT WAS FOUND AT BS 420 STRINGER 4L. REMOVED DAMAGED AREA 3" 1.1250", FABRICATED DOUBLER FROM 7075-0 .063" DIM 12" X 3" HEAT TREATED TO T6. INSTALLED REPAIR, NO OTHER DEFECTS NOTED, ACFT WAS RETURNED TO SERVICE.