At 15:22, the air traffic controller informed the flightcrew that they were proceeding in the direction of Sioux City the controller asked the flightcrew if they would prefer to go to Sioux City. Initially, Des Moines International Airport was suggested by ARTCC. 1 auxiliary hydraulic pump, and the hydraulic pump was selected "on." This action did not restore hydraulic power.Īt 15:20, the flightcrew radioed the Minneapolis Air Route Traffic Control Center (ARTCC) and requested emergency assistance and vectors to the nearest airport. The flightcrew deployed the air driven generator (ADG), which powers the No. 1 engine, and the airplane began to roll to a wings-level attitude. The captain took control of the airplane and confirmed that it did not respond to flight control inputs. The first officer advised that he could not control the airplane as it entered a right descending turn. While performing the engine shutdown checklist, the flight engineer observed that the airplane's normal systems hydraulic pressure and quantity gauges indicated zero. The captain called for the engine shutdown checklist. After checking the engine instruments, the flightcrew determined that the No. The first officer was the flying pilot.Ībout 1 hour and 7 minutes after takeoff, at 15:16, the flightcrew heard a loud bang or an explosion, followed by vibration and a shuddering of the airframe. The takeoff and the en route climb to the planned cruising altitude of F元70 were uneventful. There were 285 passengers and 11 crewmembers on board. United Flight 232 departed Denver-Stapleton International Airport, Colorado, USA at 14:09 CDT for a domestic flight to Chicago-O'Hare, Illinois and Philadelphia, Pennsylvania. Sioux Gateway Airport, IA (SUX) ( United States of America)ĭenver-Stapleton International Airport, CO (DEN/KDEN), United States of AmericaĬhicago-O'Hare International Airport, IL (ORD/KORD), United States of America Accident investigation report completed and information captured
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