What was found
AFTER TAKEOFF, SMELLED FUEL ODOR. ABORTED FLIGHT AND RETURNED TO BASE. GROUND CHECKS PERFORMED REVEALED NO DEFECTS. BOTH ENGINES FUEL SYSTEM PLUMBING COMPONENTS WERE CHECKED FOR OBVIOUS DEFECTS, NONE NOTED. FUEL TANK ACCESS PANELS WERE CHECKED FOR EVIDENCE OF LEAKS, NONE NOTED. ACFT EVAPORATOR/BLOWER MOTOR COMPARTMENT WAS INSPECTED (ABUTS TO MAIN FUEL TANK) NO LEAKS NOTED. REMOVED CABIN TRIM PANELS TO ACCESS THE FUEL TANK VENT LINES. NO LEAKS, FUMES, OR OBVIOUS DEFECTS WERE DETECTED. PERFORMED GROUND RUN WITH BOTH ENGINES SET AT FLIGHT POWER WITH A/C SYSTEM ON, NO FUEL FUMES WERE NOTED OR ANY OTHER UNUSUAL SMELLS. ACFT RETURNED TO SERVICE.