As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) EVIDENCE OF CORROSION FOUND AT SEVERAL AREAS. REFERENCE: J/C NR Z220-005-U & NON-ROUTINE NR 46, 48 CORROSION FOUND ON FLOOR BEAM LOCATED AT Y = 225.0 AND Z = -490.0 JUNCTION WITH FRAMES 17 AND ON FLOOR BEAM LOCATED AT Y = -255.0 AND Z = -490.0 JUNCTION WITH FRAME NR 19. SEAT TRACKS AFFECTED: P/N 170-03264-001 AND P/N 170-03263-001