What was found
AT 1455Z, FL360,M.83.ENG NR 2 FIRE LIGHT CAME ON. INTERMITTENT AT FIRST IT BECAME STEADY AND ENG NR 2 WAS SHUTDOWN IAW CHECKLIST. NO OTHER ADVERSE INDICATIONS OBSERVED EXCEPT FIRE DETECT 2 FAIL LEVEL 1 ALERT. RTB WAS UNEVENTFUL, 1 FIRE BOTTLE WAS DISCHARGED. USING MEGGER FOUND UPPER LT B-LOOP AND LOWER TURBINE A-LOOP SHORTED TO GROUND. R AND I BOTH LOOP DETECTOR PER MM 26-11-03-4 FDCU NR 2 RTS TEST PASSED. R AND I ENG NR 2 SYS 1 FIRE BOTTLE AND TEST PER MM 26-21-01-4 TEST OK. RUN NR 2 ENG PER MD11 JRH ALL PARAMETERS AND INDICATIONS NML. PERFORMED NR 2 ENG DECAY CHK PER MD11 JRH TEST PASSED. OPEN AND CLOSED ENG COWLS AND PLATFORM PER MM 71-10-00.