As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE IN HEAVY MX CHECK - PASSENGER CABIN LT HAND I/B SEAT TRACK FR 20-34 HAS CORROSION. REMOVED CORROSION ON LT I/B SEAT TRACK AT FRAME 31 MATERIAL LOSS MEASURES .009" DAMAGE FOUND TO BE OUT OF LIMITS. FABRICATED, LOCATED AND DRILLED AND INSTALLED REPAIR FILLER REF SRM 53-00-10/R01 REF SRM 51-43-03 AND 51-43-04 AND ETD2017-170-095829.