As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE REMOVING A DOMENUT AT BS1340 STR23L FOUND STRINGER TO BE CORRODED. EVALUATED STRINGER AT BS 1340 STR 23L FOUND TO BE OUT OF LIMITS, CUT OUT DAMAGE AREA IAW SRM 53-00-03-1A FIG 101 DETAIL II AND 53-00-03-2R FIG 201 DET II REPAIR 1. FABRICATED NEW STRINGER AND SPLICE AND INSTALLED IAW SRM 51-40-05-0G.