nissho iwai was involved in a corruption scandal in 1979 after it passed on a 500 million yen bribe from mcdonnell douglas to the director general of the japan defense agency in an attempt to influence the sale of f-4 phantom aircraft to the japan air self-defense force. in the wake of the scandal, one nissho iwai executive committed suicide by jumping from the company's headquarters building. the scandal was uncovered only three years after a similar scandal involving lockheed and marubeni conspiring to bribe prime minister kakuei tanaka.