As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LT WING SPAR UNDERWING PANEL SEAL RETAINER HAS CORROSION O/B OF APU FIRE BOTTLE AT WS 182 TO 200. FABRICATED SEAL RETAINER REF DWR 65-21656. TREATED AND PRIMED REF SRM 51-10-2 PG 1- 9. INSTALLED SEAL RETAINER REF 51-30-2 P1-3. THIS IS A CLASSIFIED A MINOR REPAIR.