As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED STRONG SMELL OF EXHAUST FUMES ON PATIENT FLIGHT, ON GROUND AND DURING FORWARD FLIGHT WITH TAIL WIND. REPLACED SLIDING WINDOW SEALS ON BOTH AFT CREW DOORS. WENT ON MAINTENANCE FLIGHT, COULD NOT DETECT ANY EXHAUST FUME SMELL IN AFT CABIN ON GROUND OR IN FLIGHT.