As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT FL 380 WE ENCOUNTERED ACRID SMOKE IN THE COCKPIT. PERFORMED QRH PROCEDURE TO CLEAR SMOKE. SMOKED CLEARED AFTER 10 - 15 MINS. REPLACED OLD COALESCER BAGS WITH NEW BAGS IAW AMM 21-54-03-2. REFER TO WRI 26-12 4858 FOR FURTHER DETAILS & INSTRUCTIONS.