As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
OIL SMELL WITH HIGH POWER SETTINGS. IT IS THE STRONGEST DURING CLIMB AND DECENT. APU IS NOT RUNNING. NO SMELL ON GROUND. COMPLIED WITH TASK CARD TC-68A-21-181006M ENVIRONMENTAL CONTROL SYSTEM BLEED DUCT BURN PROCEDURE WITH NO SMELL OR ANY ODOR IN THE COCKPIT OR CABIN. REPLACED HEPA FILTER PIN: 9914836-1 SIN: 1221 AND INSTALLED NEW HEPA FILTER PIN: 9914836-1 SIN: 1399 IN REF. TO AMM 21-70-10.