What was found
DURING FLIGHT FROM AFW TO EGE, STRONG EXHAUST ODOR IN THE COCKPIT AND DID NOT GO AWAY UNTIL AFTER SHUTDOWN. BORESCOPED LT, RT, APU BLEED AIR DUCTS LEADING TO ACM AND TRIM VALVES. FOUND NO TRACES OF ANY FUEL OR OIL. PERFORMED 30 MINUTE RUN ON BOTH ENGINES AND APU RAN ACM FROM ALL BLEED AIR SOURCES AND NOTED NO ABNORMAL ODORS. NO DEFECTS NOTED DURING MAINTENANCE DESCRIBED ABOVE. C/W IAW DESCRIPTION OF WORK PERFORMED.