As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ATB - AFTER TAKEOFF PRIOR TO THRUST REDUCTION, BURNING ELECTRICAL AND CHEMICAL SMELL OBSERVED IN THE COCKPIT. TAKEOFF THRUST WAS TOGA. PERFORMED DECONTAINATION OF THE BLEED AIR DUCTS LEVEL C AMM 36-10-00-615-806-A. NO BURNING SMELL WHEN PACKS 1 AND 2 ON AND OFF. CLEARED MIC SHEET. PLACARD REMOVED OK FOR SERVICE