What was found
ACCURADE ODOR, SIMILAR TO "BURNING RUBBER" NO VISIBLE SMOKE. NO SECONDARY INDICATIONS. 20 MILES SW KIAD DURING APPROACH TO IAD AT 8000' LASTED APROX 5 MINS VISUALLY INSPECT EE COMPARTMENT FOUND NO EVIDENCE OF BURNING OF RUBBER SMELL. RAN APU PER JRH TO OPERATE BOTH PACKS ON GROUND NO EVIDENCE OF RUBBER SMELL. CHECK CARGO COMPARTMENT NO EVIDENCE OF BURNING RUBBER SMELL. NO DEFECTS FOUND PER MM 05-51-56-2. OK FOR SERVICE.