As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C-13 CHECK 2 EACH BULGES WERE FOUND ON UPPER SURFACE SKIN OF LT WING NR 2 SPOILER. MAINTENANCE REMOVED 2 EACH BULGES ON UPPER SURFACE SKIN OF LT WING NR 2 SPOILER; FABRICATED A REPAIR DOUBLER; INSTALLED REPAIR PART IAW B737-300 SRM 57-70-01, PG. 209-210.