As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW NOTICED AN ODOR IN THE COCKPIT CLIMBING OUT, ENROUTE AND STILL PERSISTENT. THE CREW ELECTED TO MAKE A PRECAUTIONARY LANDING. MAINTENANCE INSPECTED THE ACFT AND ENGINE. THE ODOR COULD BE ISOLATED BY SHUTTING THE LT ENGINE BLEED. THE ACFT WAS FERRIED WHERE A BORESCOPE WAS PERFORMED, AND NO CONCLUSIVE FINDS. ENGINE MFG RECOMMENDS THE LT ENGINE CARBON SEAL ON THE LOANER ENGINE TO BE REPLACED AS A PRECAUTION.