As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND BS 500B, CORROSION FOUND AT STATION 500B STRINGER 28R KEEL BEAM. REMOVED CORROSION AND CUT OUT A 5 INCH HOLE. FABRICATED FILLER AND SKIN PATCH. INSTALLED FILLER, PATCH PER SRM 51-10-6 PAGE 4, REPAIR COMPLETED. AIRCRAFT RETURNED TO SERVICE. (M)