As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BURNING RUBBER SMELL IN CABIN/COCKPIT MOST NOTICEABLE IN AFT CABIN AREA. SEEMED TO IMPROVE DURING CRUSE. ATS ALSO DISCONNECTED W/THROTTLE SPLIT APPROACHING LEVEL OFF. ATS DISCONNECT W/THROTTLE SPLIT SIGNED ON LOG PAGE. PERFORMED AMDS CARDS 2120-2367 SMOKE/ODOR TROUBLESHOOTING AND 7100-2619 PNEU DUCT BURN OUT. NO ORDERS NOTED.