What was found
AFTER ENGINE START, LEFT OIL FILTER ADVISERY MESSAGE ILLUMINATED ON EICAS. RETURNED TO GATE. R & R NR 1 ENGINE OIL FILTER IAW AMM 79-21-05-024-001 & 79-21-05-424-014, OPS CHECKED NORMAL, NO LEAKS NOTED. NO MESSAGE ON ENGINE RUN. SERVICED OIL TO FULL.