What was found
BURNING SMELL IN FLIGHT WHEN ENGINE ANTI-ICE WAS ON. ACCOMPLISHED SMOKE/FUMES IN CABIN CONDITIONAL INSPECTION PER B767 AMM 05-51-56. AFTER 30 PLUS MINTES OF DUAL ENGINE OPERATION AT IDLE NO ABNORMAL ODORS DETECTED. EXTERNAL ENGINE TUBING INSPECTION IAW AMM 75-00-00-206-001-H00 NOTED NO DEFECTS. INSPECTED #2 ENGINE MASTER CHIP DETECTOR IAW AMM 79-21-05 NO DEFECTS NOTED. OPERATED LT & RT COOLING PACKS DURING ENGINE RUNS IAW AMM 21-00-00 NO FAULTS NOTED. AIRCRAFT OK FOR SERVICE.