As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CABIN LH OMEGA BEAM UPPER O/B FLANGE HAS CORROSION AT FRAME 43.5- REMOVED LOWER SCAT TRACK AT FRAME 43.5. REMOVED LH GUSSET AT FRAME 43.5. INSTALLED NEW GUSSET ONTO THE TOP OF THE LEFT HAND OMEGA BEAM BY INSTALLING CHERRY RIVETS AND SOLID RIVETS. NUTPLATES MUST BE INSTALLED TO COMPLETE INSTALLATION. INSTALLED NUTPLATES ON OMEGA BEAM GUSSET. READY TO INSTALL SEAT TRACK. INSTALLED SEAT TRACK AT FRAME 45.