As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIP 188 WE NOTICED A FAINT ODOR IN COCKPIT. BURNING SMELL. GOT L RECIRC EICAS MSG. DID QRH FOR L RECIRC AND SMOKE+FUMES, DONNED MASKS. TURNING OFF RECIRC FAN CAUSED FUMES TO DISSIPATE. CORRECTIVE ACTION: R/R LEFT RECIRC FAN AND LEFT/RIGHT RECIRC AIR FILTERS IAW B767- 300 AMM 21-25. OPS CHK GOOD. MEL CLOSED AND PLACARD REMOVED. A/C OK FOR SVC. (5324791)