What was found
ENGINE SHUT DOWN, AIR TURN BACK. LEFT ENGINE FIRE WARNING, FUEL DUMP, OVERWIEGHT LANDING. PERFORMED AFOLTS CHECK PER FIM 26-11-00 P101 FIG 104 P106-109. NIL FAULTS VISUAL CHECKS OF FIRE LOOPS SATIS, NIL SIGN OF DUCT LEAKS, PERFORMED ENGINE RUN IAW MM 71-00-00. 90 PERCENT N2 DURATION 20 MINS, NO FIRE WARNINGS AS PRECAUTION. REPLACED LT ENG FIRE WARNING CARD M10224 MM 26-10- 01. OVERWEIGHT LANDING CHK IAW MM 05-51-35.