A hull loss is an aviation accident that damages the aircraft beyond economic repair, [1] resulting in a total loss. The term also applies to situations where the aircraft is missing, the search for its wreckage is terminated, or the wreckage is logistically inaccessible. [2]
The aviation industry uses the metric of "Hull losses per 100,000 flight departures" to measure the relative risk of a given flight or aircraft. [1] There is no official ICAO or NTSB definition. [3]
From 1959 to 2006, 384 of 835 hull losses were non-fatal. [4]
Constructive hull loss takes into account other incidental expenses beyond repair, such as salvage, logistical costs of repairing non-airworthy aircraft within the confines of the incident site, and recertifying the aircraft.
Airlines typically have insurance to cover hull loss. Their policies—like many covering assets that are subject to depreciation—typically pay the insured a formulaic used-item value. A damaged aircraft will often simply be scrapped.[ citation needed ]
Recent discussions within the aviation industry have raised the importance of factoring in new variables such as environmental impact and regulatory restrictions when evaluating constructive hull losses. Additionally, advancements in aircraft salvage technologies have reduced the number of cases classified as total losses by enabling more cost-effective recovery and repair efforts.
In the initial years of aviation (1900s–1920s) hull losses were common due to limited understanding of aerodynamics and aircraft technology. Pioneering aviators like the Wright Brothers and their contemporaries faced numerous accidents and losses. [5]
World War I and World War II extensively used military aircraft, leading to numerous hull losses in combat. [6] The post-war period witnessed the rapid development of commercial aviation. [7] The introduction of pressurized cabins, jet engines, and improved navigation systems reduced the likelihood of hull losses in commercial aviation.[ citation needed ]
The emergence of jet aircraft in the 1950s led to faster, more reliable, and safer aircraft. [8] However, the early years of the jet age also saw some high-profile accidents and hull losses, prompting improvements in training and safety regulations.[ citation needed ]
The Wright brothers, Orville Wright and Wilbur Wright, were American aviation pioneers generally credited with inventing, building, and flying the world's first successful airplane. They made the first controlled, sustained flight of an engine-powered, heavier-than-air aircraft with the Wright Flyer on December 17, 1903, four miles (6 km) south of Kitty Hawk, North Carolina, at what is now known as Kill Devil Hills. In 1904 the Wright brothers developed the Wright Flyer II, which made longer-duration flights including the first circle, followed in 1905 by the first truly practical fixed-wing aircraft, the Wright Flyer III.
Aviation includes the activities surrounding mechanical flight and the aircraft industry. Aircraft includes fixed-wing and rotary-wing types, morphable wings, wing-less lifting bodies, as well as lighter-than-air aircraft such as hot air balloons and airships.
An aviation accident is an event during aircraft operation that causes serious injury, death, or destruction. An aviation incident is any operating event that compromises safety but does not progress to an aviation accident. Preventing accidents and incidents is the main goal of aviation safety.
Korean Air Lines Co., Ltd. is the flag carrier of South Korea and its largest airline based on fleet size, international destinations, and international flights. It is owned by the Hanjin Group.
Mahan Airlines, operating under the name Mahan Air, is a privately owned Iranian airline based in Tehran, Iran. It operates scheduled domestic services and international flights to the Far East, Middle East, Central Asia and Europe. Its main home bases are Tehran Imam Khomeini International Airport and Mehrabad International Airport. Mahan air is affiliated with the Iranian Quds Force of the Iranian Revolutionary Guard.
Charles Edward Taylor was an American inventor, mechanic and machinist. He built the first aircraft engine used by the Wright brothers in the Wright Flyer, and was a vital contributor of mechanical skills in the building and maintaining of early Wright engines and airplanes.
The Boeing 377 Stratocruiser was a large long-range airliner developed from the C-97 Stratofreighter military transport, itself a derivative of the B-29 Superfortress. The Stratocruiser's first flight was on July 8, 1947. Its design was advanced for its day; its relatively innovative features included two passenger decks and a pressurized cabin. It could carry up to 100 passengers on the main deck plus 14 in the lower deck lounge; typical seating was for 63 or 84 passengers or 28 berthed and five seated passengers.
The Douglas DC-7 is an American transport aircraft built by the Douglas Aircraft Company from 1953 to 1958. A derivative of the DC-6, it was the last major piston engine-powered transport made by Douglas, being developed shortly after the earliest jet airliner—the de Havilland Comet—entered service and only a few years before the jet-powered Douglas DC-8 first flew in 1958. Larger numbers of both DC-7B and DC-7C variants were also built.
Aviation safety is the study and practice of managing risks in aviation. This includes preventing aviation accidents and incidents through research, educating air travel personnel, passengers and the general public, as well as the design of aircraft and aviation infrastructure. The aviation industry is subject to significant regulation and oversight.
The Wright Flyer made the first sustained flight by a manned heavier-than-air powered and controlled aircraft—an airplane—on December 17, 1903. Invented and flown by brothers Orville and Wilbur Wright, it marked the beginning of the pioneer era of aviation.
The Wright Flyer II was the second powered aircraft built by Wilbur and Orville Wright. During 1904 they used it to make a total of 105 flights, ultimately achieving flights lasting five minutes and also making full circles, which was accomplished by Wilbur for the first time on September 20.
South African Airways Flight 201 (SA201), a de Havilland Comet 1, took off at 18:32 UTC on 8 April 1954 from Ciampino Airport in Rome, Italy, en route to Cairo, Egypt, on the second stage of its flight from London, England to Johannesburg, South Africa. The flight crashed at around 19:07 UTC, killing all on board. The flight was operated as a charter by British Overseas Airways Corporation (BOAC) using the aircraft registration G-ALYY, with a South African crew of seven, and carrying fourteen passengers.
Jet Airliner Crash Data Evaluation Centre(JACDEC) is a company that provides commercial aviation safety analysis.
Aviation insurance is insurance coverage geared specifically to the operation of aircraft and the risks involved in aviation. Aviation insurance policies are distinctly different from those for other areas of transportation and tend to incorporate aviation terminology, as well as terminology, limits and clauses specific to aviation insurance.
In aviation, a mid-air collision is an accident in which two or more aircraft come into unplanned contact during flight. Owing to the relatively high velocities involved and the likelihood of subsequent impact with the ground or sea, very severe damage or the total destruction of at least one of the aircraft usually results. For this reason, accidents involving mid-air collisions especially during cruise frequently result in very few survivors or, more often, a total lack thereof. This is especially when the accident involves jet aircraft.
In insurance claims, a total loss or write-off is a situation where the lost value, repair cost or salvage cost of a damaged property exceeds its insured value, and simply replacing the old property with a new equivalent is more cost-effective.
Continental Express Flight 2574 was a scheduled domestic passenger airline flight operated by Britt Airways from Laredo International Airport in Laredo, Texas to Houston Intercontinental Airport (IAH) in Houston, Texas. On September 11, 1991, the Embraer EMB 120 Brasilia turboprop, registered N33701, crashed while initiating its landing sequence, killing all 14 people on board. The aircraft wreckage hit an area near Eagle Lake, Texas, approximately 65 miles (105 km) west-southwest of the airport.
Continental Airlines Flight 1404 was a Continental Airlines domestic flight from Denver International Airport in Denver, Colorado, to George Bush Intercontinental Airport in Houston, Texas. On the evening of December 20, 2008, the flight crashed while taking off from Denver, resulting in two critical injuries, 36 noncritical injuries, and a hull loss of the Boeing 737-524 aircraft.
On 22 December 2009, an American Airlines Boeing 737-800, operating American Airlines Flight 331 and carrying 148 passengers and 6 crew, overran runway 12 on landing at Kingston in poor weather. The plane continued on the ground outside the airport perimeter and broke apart on the beach. Of the 154 people on board, 85 people were injured, including 14 seriously.
Ethiopian Airlines Flight 409 was an international commercial flight scheduled from Beirut to Addis Ababa that crashed into the Mediterranean Sea shortly after takeoff from Rafic Hariri International Airport on 25 January 2010, killing all 90 people on board. This was the first fatal crash for Ethiopian Airlines since the hijack of Ethiopian Airlines Flight 961 in 1996.
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