Debris from a United Airlines plane fell onto Denver suburbs during an emergency landing on Saturday after one of the plane’s engines suffered a catastrophic failure and rained pieces of the engine casing on a neighborhood where it narrowly missed a home. The plane landed safely, and nobody aboard or on the ground was reported hurt, authorities said. The Federal Aviation Administration said in a statement that the Boeing 777-200 returned to the Denver International Airport after experiencing a right-engine failure shortly after takeoff. Flight 328 was flying from Denver to Honolulu when the incident occurred, the agency said. United said in a separate statement that there were 231 passengers and 10 crew on board. The airline released no further details. The Broomfield Police Department posted photos on Twitter showing large, circular pieces of debris leaning against a house in the suburb about 25 miles north of Denver. Police are …