As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHEN COCKPIT TEMP CONTROL IS SET ABOVE CURRENT TEMP AC BLOWS WARM AIR THROUGH COCKPIT DUCT SYSTEM WARM AIR HAS HEAVY OILY SMELL. PERFORMED B717 FIM 21-22-00-810-808, REPLACED COALESCE BAGS B717 AMM 21-54. INSPECTED LEFT AND RIGHT PACK DUCT BETWEEN TEMP CONTROL VALVES AND HEAT EXCHANGERS. NO OIL CONTAMINATION FOUND, INSPECTED BUFFER AIR VALVE REF AMM 75-22-01 NO DEFECTS. C/W B717 AMM 21-54-00-100-801, NO SMELL NOTED AT THIS TIME. C/W AMDS CARD 0550-2001. OK FOR SERVICE. (LP5063540)