What was found
ENGINE FAIL LIGHT ILLUMINATED AT 100 KTS ON T/O OAT 10. 169,000 TOGW. REJECTED T/O CHECKLIST COMPLIED WITH. R & R NR 2 ENGINE N1 GAUGE AS PRECAUTIONARY IAW AMM 31-00-011-4. RAN NR 2 ENGINE IAW JRH CHAPTER 6, ALL ENGINE PARAMETERS WERE NORMAL. ON RETURN TO GATE FOUND 2 BLOW OUT PANELS MISSING ON NR 2 ENGINE RT AFT COWLING, OPENED NR 2 ENGINE COWL, FOUND AIR DUCTING PARTS LAYING IN COWLING, SUSPECT 13 STAGE DUCT AT TOP OF ENG. BLOWN APART, AND FIRE LOOP DAMAGED IN SAME AREA. REPLACED THE 13TH STAGE SADDLE DUCT.