What was found
LEFT ENGINE FAILED AT 800 FT ON TAKEOFF WITH INDICATION OF FIRE. RETURNED IMMEDIATELY TO EWR, AFTER DISCHARGING BOTH FIRE BOTTLES. REFERENCE LOGPAGE 2129912 FOR REMOVAL AND REPLACEMENT OF NR 1 ENGINE, PARTS CHANGE AND TESTING AND NON-ROUTINES 4315202, 4315203, 4315205 AND 4315206 FOR REMOVAL AND REPLACEMENT OF FIRE BOTTLES.