As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE PERFORMING ETD2023-170-015226-3 REPAIR OF FWD FUSELAGE LOWER SKIN, DAMAGED AREA FOUND TO HAVE OIL CANNING PRESENT. CUT OUT DAMAGED AREA BETWEEN FR 16-17 AND STGR 23L AND 24L. INSTALLED FABRICATED FILLER AND DOUBLER. REF SRM 53-10-01-02-12-REPAIR 12P.