What was found
LEVEL 2 CORROSION, UPPER FUSELAGE, PASSENGER CABIN ON FR16 AT Y254 SEAT TRACK CORRODED. REPLACED THE SEAT TRACK BTWN FR 12 TO FR 24, AT Y:254 IAW SRM 53-11-14-08B, FIG 008, ITEM 005B, REV 158.00, DRAWING D53112816, SHEET 01, ISSUE G. ITEM 000, & DWG D53110900, ISSUE L, SHEET 08. (LP: 1795178, AIRCRAFT WAS GROUNDED)