What was found
AFT CARGO COMPT BS 990 BETWEEN STR 25L AND 26L HAS FRAME INNER CHORD DENTED. CUT OUT DAMAGE SECTION 2 AREAS 1" BY 2" AT AFT CARGO BS 990 BETWEEN STR 25L-26L UPPER FLANGE AS PER B727 SRM 51-40-3 FIG 1. FABRICATED DOUBLER FROM 7075 .071 5" BY 22" IAW B727 SRM 51-40-3 FIG 1. HEAT TREATED 7075-0 TO 7075T6 IAW FLIGHTSTAR AIRCRAFT SERVICES ER 2-37153-801 REV IR AND B727 SRM 51-10-3. TREATED AND PRIMED DOUBLER PER B727 51-10-2. INSTALLED DOUBLER AT AFT CARGO FRAME STA 990 UPPER FLANGE BETWEEN STR 25L-26L PER B727 SRM 51-40-3 FIG 1.