What was found
AFT CARGO COMPARTMENT BS 990, FWD AND AFT SIDES OF FRAME STR 29L-28L HAS WEB AND FRAME SURFACE CORROSION. CUT OUT DAMAGED SHEAR TIE AREA DIM 7 BY 1 IAW B727 SRM 53-10-4, FIG 13. FABRICATED NEW SHEAR TIE FROM 7075T0 .071 DIM 8 BY 4.25 IAW B727 SRM 53-10-4, FIG 13 AND 53-10-2, FIG 5. HEAT TREATED PART TO T6 IAW FLIGHTSTAR AIRCRAFT SERVICES ENGINEERING REPORT 2-37153-801 REV A. TREATED, PRIMED AND INSTALLED NEW SHEAR TIE AT BS 990 BETWEEN STR 28L AND 29L IAW B727 SRM 51-10-2 AND 51-30-2, FIG 1.