As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AIRCRAFT 649, L/P 9787685) AFTER ENGINE START, SMOKE IN AFT RIGHT LAV. F/O SIDE WORKING WORK SCOPE 0858252. COMPLIED WITH NO GO ODI FLIGHT EXCEPTION DRIVER. UNABLE TO DUPLICATE PROBLEM. R/R RECIRC FAN FILTERS PER B757 AMM 21-25. RAN SYS FOR MULTIPLE.