As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING AFT LOWER LT FUSELAGE SKIN REPLACEMENT PER SB 737-53-1168, AN EXISTING .315" DIA HOLE AND AN EXISTING .156" DIA HOLE WERE FOUND AT LAP JOINT S-20L AT BS 727+9.9. MAJOR REPAIR: REMOVED DAMAGE. INSTALLED REPAIR DOUBLER AND TRIPLER WITH FILLERS.