As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB-OUT, LAV SMOKE MESSAGE APPEARED ON EICAS AND BURNING ODOR NOTED IN COCKPIT. F/A REPORTED DETECTING BURNING OIL ODOR IN CABIN AS WELL. EMERGENCY DECLARED AND AIRCRAFT RETURNED TO FIELD WITHOUT EVENT. MAINTENANCE REMOVED AND REPLACED NR 2 ENGINE IAW J/C CE72-00-01. ENGINE WOULD LATER FAIL IT'S TEST RUN DUE TO LAV SMOKE ON EICAS.