An engine shut down on a United Airlines jetliner Sunday, forcing it to make an emergency landing in western Colorado with 125 passengers and crew on board. 
 
 The Boeing 757 was flying from Denver to Los Angeles when one of its two engines shut down, and the flight was diverted to Grand Junction Regional Airport, typically a landing spot for smaller aircraft. 
 
 Passenger Jim Schreckengast said ground crews at first had trouble finding stairs high enough to reach the door of the 757. 
 
 The plane landed safely at about 11:44 a.m., Federal Aviation Administration spokesman Ian Gregor said. No injuries were reported. 
 
 United spokesman Charlie Hobart said he didn't know the nature of the problem, or whether the crew shut down the engine or it stopped on its own. 
 
 Amy Jordan, deputy director at Grand Junction airport, told the Denver Post that "the engine had problems shortly after takeoff." 
 
 Schreckengast, of Fort Collins, Colorado, told The Associated Press that the pilot announced over the public address speakers that the engine had lost oil volume. 
 
 Schreckengast said passengers remained calm and no one appeared to be afraid. 
 
 "There was some applause when we landed," he said. "I think the crew handled it very well." 
 
 Hobart said United was sending another plane from Denver to pick up the passengers in Grand Junction and take them on to Los Angeles. 

 A United Airlines flight from Denver to Los Angeles made an emergency landing in Colorado on Sunday after one of the plane's two engines failed. 
 
 About an hour into Flight 321, the Boeing 757 began experiencing engine problems, United spokesman Charles Hobart said. The crew diverted the plane to Grand Junction, where it landed safely at 11:44 a.m. 
 
 Federal Aviation Administration spokesman Ian Gregor said commercial jets are designed to be able to fly long distances on one engine. 
 
 The cause of the failure has not been determined. 
 
 "We won't know what caused the issue until our safety experts have thoroughly examined the aircraft," Hobart said. 
 
 The flight's 119 passengers will complete their journey on a different plane, he said. 
 
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 -- Abby Sewell
– A United airlines flight en route from Denver to Los Angeles was forced to make an emergency landing in Colorado when one of its two engines shut down. The Boeing 757 experienced trouble shortly after takeoff and was diverted to a Grand Junction facility typically used by much smaller airplanes. There were no injuries among the 125 people on board, reports the Los Angeles Times. The FAA is investigating, although an official emphasized that planes are capable of traveling long distances on a single engine. "There was some applause when we landed," a passenger told AP. "I think the crew handled it very well."