As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION LWR 10 L STRINGER 4" O/B RIB 2 L UPPER FWD FLANGE LWR SURFACE 2 AREAS IN HORZ STAB BOX. CHECKED AREA OF CORROSION EXCEEDING LIMITS IAW B767 SRM 55-10-03 FIG 101 AREA REPAIR COMPLETED IAW ABX REA B655-59861-MR, LOCATION HORZ STAB, LOWER LEFT STRINGER #10 AT STA 4, ACFT WAS GROUNDED.