As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB OUT, THE CREW DETECTED A BURNING RUBBER SMELL IN BOTH THE COCKPIT AND THE CABIN. THE CREW COMPLIED WITH THE AIR CONDITION SMOKE CHECKLIST AND THE SMELL SUBSIDED AFTER THE LT PACK WAS TURNED OFF. THE AIRCRAFT LANDED SAFELY. MAINTENANCE PERFORMED OPERATIONAL CHECKS OF BOTH PACKS WITH BOTH ENGINES RUNNING WITH NO DEFECTS NOTED. OPERATIONAL CHECKS GOOD. AIRCRAFT OK FOR SERVICE. (K)