As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE IN HEAVY CHECK - CORROSION ON FLOOR DOUBLER O/B OF THE LT SEAT TRACK AT FR 16, Z=490.0. BLENDED AREAS OF CORROSION ON FLOOR DOUBLER O/B OF THE LT SEAT TRACK AT FR 16 COMPLIED WITH PERMANENT REPAIR REF ETD2017-170-088175 REV I PN 170-12118-001.