What was found
UPPER FUSELAGE PAX CABIN FLOOR STRUCTURE SEAT TRACK LOCATED AT FR 20 -Y1292 WITH CORROSION. REPLACED SEAT TRACK AT UPPER FUSELAGE FR20 - Y1292 IAW SRM 51-72-11-911-001 REV 155, & DRAWING D53112812 ISSUE E, D53110920 ISSUE E00, D53110984 ISSUE B AND D53918122 ISSUE A. (LP: 1401839)