United B753 at Washington on May 12th 2014, flaps asymmetry

A United Boeing 757-300, registration N57852 performing flight UA-1277 from Los Angeles,CA to Washington Dulles,DC (USA), was on final approach to Washington's runway 01C when the crew aborted the approach reporting a flaps mismatch indication and requested emergency services on stand by. The aircraft climbed back to 3000 feet and positioned for another approach to runway 01R and landed safely at a higher than normal speed.

A passenger reported the captain announced they were landing at about 20 knots above normal landing speed due to the flaps asymmetry, emergency services would need to check their brakes after landing. Following the check the aircraft taxied to the apron.