What was found
AIRCRAFT ARRIVED WITH NO INBD WRITE-UPS. WHILE MX WAS DOING THE ENG START CHECKLIST TO START TROUBLESHOOTING THE LT ENG PRSOV MEL, IT WAS FOUND THAT THE LT ENG FIRE DETECT SYS WOULD NOT TEST & ONLY NR 2 OVHT LOOP WOULD TEST. AFTER OPENING THE LT ENG COWLINGS FOUND TERMINALS BROKEN ON THE AFT UPPER A LOOP & AFT LOWER B LOOP & TERMINAL BROKEN ON THE SYS 1 OVHT LOOP. R & R LT ENG UPPER AFT FIRE ELEMENT IAW AMM 26-11-02 201. TROUBLE SHOT IAW FIM 26-11 FT-804. R& R LT ENG FIRE OVERHEAT DETECTOR ELEMENT IAW AMM 26-11-02 201. OPERATIONAL TEST NORMAL & ACFT RETURNED TO SERVICE.