What was found
CORROSION STRUCTURAL CENTER FUSELAGE III WET AREA 53-23 LT BEAM AT FR 87. INSTALLED FABRICATED DOUBLER AT CENTER FUSELAGE III WET AREA 53-23 LT BEAM AT FR87 REF 53-23-01-01, 51-21-01, 51-41-02. ON SEAT TRACK PN: 170-86081-005 SEE W/O H5692 SEQ 1533 SN 137 FOR WORK DETAILS. AIRCRAFT REMAINS IN HEAVY CHECK.