A senior officer of the United States Air Force on Monday said his country was happy to see the issue of the US aircraft detained in Mumbai being sorted out quickly.Responding to queries during a press conference held on the sidelines of the Indo-US joint Air Force exercise, Ex-Cope India 2009 in Agra, the Defense Attache of the US Embassy in New Delhi, Colonel Stuart Kowward, said the issue has been sorted out and the officials were waiting for a final signal from India.