As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
*EMERGENCY DECLARED* SMOKE AND FUMES ODOR IN THE COCKPIT. DECLARED EMERGENCY ON BASE LEG. LANDED UNEVENTFULLY. EVACUATED AIRCRAFT. DURING R&R OF FWD RACK EXHAUST FAN, FOUND CB P6 H21 EQUIP COOL FAN FWD EXH OPEN. R&R FORWARD RACK EXHAUST FAN IAW AMM 21-58-06/401. OPS CHECK OF EXH FAN NORMAL AND RAN APU FOR OVER 1 HR. WITH NO SMOKE OR FUMES ODOR. NO EICAS MSGS. OK TO CONTINUE.