United Airlines Flight 859 was a

Douglas DC-8 The Douglas DC-8 (sometimes McDonnell Douglas DC-8) is a long-range narrow-body airliner built by the American Douglas Aircraft Company. After losing the May 1954 US Air Force tanker competition to the Boeing KC-135, Douglas announced in Ju ...

registration Register or registration may refer to: Arts entertainment, and media Music * Register (music), the relative "height" or range of a note, melody, part, instrument, etc. * ''Register'', a 2017 album by Travis Miller * Registration (organ), the ...

, on a scheduled

passenger flight An airline is a company that provides air transport services for traveling passengers and freight. Airlines use aircraft to supply these services and may form partnerships or alliances with other airlines for codeshare agreements, in which ...

that crashed on landing at

Stapleton International Airport Stapleton International Airport was a major airport in the western United States, and the primary airport of Denver, Colorado, from 1929 to 1995. It was a hub for Continental Airlines, the original Frontier Airlines, People Express, United Ai ...

Denver, Colorado Denver () is a consolidated city and county, the capital, and most populous city of the U.S. state of Colorado. Its population was 715,522 at the 2020 census, a 19.22% increase since 2010. It is the 19th-most populous city in the Unit ...

after departing from

Omaha, Nebraska Omaha ( ) is the largest city in the U.S. state of Nebraska and the county seat of Douglas County. Omaha is in the Midwestern United States on the Missouri River, about north of the mouth of the Platte River. The nation's 39th-largest cit ...

Eppley Airfield Eppley Airfield , also known as Omaha Airport, is an airport in the midwestern United States, located northeast of downtown Omaha, Nebraska. On the west bank of the Missouri River in Douglas County, it is the largest airport in Nebraska, with ...

on July 11, 1961. Eighteen people were killed, and 84 were injured. The

crash Crash or CRASH may refer to: Common meanings * Collision, an impact between two or more objects * Crash (computing), a condition where a program ceases to respond * Cardiac arrest, a medical condition in which the heart stops beating * Couch su ...

was caused by the failure of the two

port A port is a maritime facility comprising one or more wharves or loading areas, where ships load and discharge cargo and passengers. Although usually situated on a sea coast or estuary, ports can also be found far inland, such as Ham ...

engines to generate

reverse thrust Thrust reversal, also called reverse thrust, is the temporary diversion of an aircraft engine's thrust for it to act against the forward travel of the aircraft, providing deceleration. Thrust reverser systems are featured on many jet aircraft to ...

, which sent the aircraft off the runway. One of the plane's fuel tanks subsequently ruptured and ignited.

Accident

The aircraft had suffered a hydraulic failure while en route from Omaha. The failure was not thought serious, however; the crew followed the checklists for hydraulic failure, and preparation was made for an expected routine landing. The plane touched down normally, but when the engines' thrust levers were moved to the reverse position, the reverser buckets for the engines on the port side failed to deploy correctly. That failure caused the left-side engines to continue generating forward thrust, while the right-side engines generated reverse thrust. The plane immediately began to veer to the right as a result of the asymmetrical thrust. All tires blew out on the right main

landing gear Landing gear is the undercarriage of an aircraft or spacecraft that is used for takeoff or landing. For aircraft it is generally needed for both. It was also formerly called ''alighting gear'' by some manufacturers, such as the Glenn L. Martin ...

, after which the plane left the

runway According to the International Civil Aviation Organization (ICAO), a runway is a "defined rectangular area on a land aerodrome prepared for the landing and takeoff of aircraft". Runways may be a man-made surface (often asphalt concrete, as ...

and hit a

taxiway A taxiway is a path for aircraft at an airport connecting runways with aprons, hangars, terminals and other facilities. They mostly have a hard surface such as asphalt or concrete, although smaller general aviation airports sometimes use gravel ...

still under construction. The

nose gear A nose is a protuberance in vertebrates that houses the nostrils, or nares, which receive and expel air for respiration alongside the mouth. Behind the nose are the olfactory mucosa and the sinuses. Behind the nasal cavity, air next passes th ...

collapsed, and the airplane then slammed into several airport vehicles, including construction equipment. This ruptured a fuel tank on the right wing and caught fire, killing 18 (including one on the ground) and injuring 84 out of a total of 122 people aboard.

Investigation

Carbon monoxide poisoning Carbon monoxide poisoning typically occurs from breathing in carbon monoxide (CO) at excessive levels. Symptoms are often described as "flu-like" and commonly include headache, dizziness, weakness, vomiting, chest pain, and confusion. Large e ...

was the cause of death for 16 of the passengers, who were unable to evacuate. One elderly woman broke both ankles during the evacuation, and later died from shock. The

Civil Aeronautics Board The Civil Aeronautics Board (CAB) was an agency of the federal government of the United States, formed in 1938 and abolished in 1985, that regulated aviation services including scheduled passenger airline serviceStringer, David H."Non-Skeds: Th ...

(CAB) report stated that a contributing factor to the accident was the failure of the first officer to monitor the reverse thrust indicator lights when he applied reverse thrust. The airport fire department was found to be deficient in its emergency equipment, but the fire crews were praised for their efforts.

References

External links

* {{DEFAULTSORT:United Airlines Flight 0859 Airliner accidents and incidents in Colorado Airliner accidents and incidents caused by mechanical failure Aviation accidents and incidents in the United States in 1961 Accidents and incidents involving the Douglas DC-8 Disasters in Colorado History of Denver

859 __FORCETOC__ Year 859 ( DCCCLIX) was a common year starting on Sunday (link will display the full calendar) of the Julian calendar. Events By place Europe * January 15 – Battle of St. Quentin: Frankish forces, led by Humfrid, d ...

1961 in Colorado July 1961 events in the United States

Accident

Investigation

See also

References

External links