What was found
AT 65 KNOTS ON TAKEOFF ROLL, LOUD BANG FROM LEFT SIDE OF AIRCRAFT. APPARENT. REJECTED TAKEOFF. NO INDICATIONS ON EICAS, NO ABNORMAL TAXI INDICATIONS, OR FEEL. CONTACTED MAINTENANCE. THEY ADVISED TO TAXI TO THE GATE. ON TAXI IN NOTICED RIGHT ENGINE VIBE 5.0. AFTER BLOCK IN, PERFORMED GVI OF BOTH ENGINES, NO ABNORMALITIES NOTED. NO SIGNS OF FOD INGESTION, NO LEAKS, TAIL PIPES LOOKED CLEAR. DOWNLOADED DFDR W'/REF TO AMM 31-31-01-2, RESULTS SENT TO MEM/PP. FURTHER T/S REQ'D. REMOVAL FROM A/C ONLY NO INSTALLATION. ENGINE REMOVED PER ABOVE WORK CARD 7100000-02-03, REFERENCE WORK CARD FOR ALL RELATED SIGN OFFS AND PROCEDURES. REPLACED THE ENGINE