United Airlines #UA688 declared an emergency and returned to Washington following engine issue
United Airlines flight UA688 from Washington DC to Boston declared an emergency and returned to Washington. Flight UA688 was forced to return to Washington following a technical issue. The Boeing 737-900ER departed at 17:33 EDT from IAD airport runway 30. The aircraft (reg. N68801) climbed to 29,000 ft when the crew noticed a mechanical issue…