Indonesia's aviation industry has admitted concern over widespread drug use, and the House of Representatives will summon Lion Air management after the arrest of a Lion pilot for drug use in Surabaya on Saturday, the second such case in two months. Indonesia National Air Carriers Association secretary general Tengku Burhanuddin said the use of drugs among airline crews had tainted the industry's image, and he called on the government to take quick action to crack down on the circulation of drugs. [continues 414 words]