As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT ATTN REPORT RUBBER SMELL IN AFT CABIN ALONG WITH SMOKEY HAZE. PERFORM SMOKE IDENT AND REMOVAL CHECK LIST. SMOKE CLEARED. AFTER RE-ENERGIZING LT RECIR FAN LT RECIR FAN EICAS MSG CAME ON AND OFF SEVERAL TIMES FINALLY CAME ON AND STAYED ON. REPLACED LT RECIR FAN AND RESET 20 AMP C/B. OPERATION NORMAL.