20 November 2013
ExpressJet flight EV-5723 , Bombardier CRJ-200 from Washington to Montreal it was on final approaching Trudeau airport runway 24R at 1800 feet when the crew reported a flaps problem.The crew went around climb at 3000 feet declared an emergency and shorty after diverted back to Montreal for a safe landing
Montreal airport
http://flightaware.com/live/flight/ASQ5723/history/20131120/2150Z/KIAD/CYUL
Source
Canadian TSB