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 their 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 ]
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.
Turkish Airlines Flight 981 (TK981/THY981) was a scheduled flight from Istanbul Yeşilköy Airport to London Heathrow Airport, with an intermediate stop at Orly Airport in Paris. On 3 March 1974, the McDonnell Douglas DC-10 operating the flight crashed into the Ermenonville Forest, 37.76 kilometres (23.46 mi) outside Paris, killing all 335 passengers and 11 crew on board. It was the first aviation accident to exceed 200 and 300 fatalities. The crash was also known as the Ermenonville air disaster.
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.
China Airlines/Mandarin Airlines Flight 642 was a flight that crashed at Hong Kong International Airport on 22 August 1999. It was operating from Bangkok to Taipei with a stopover in Hong Kong.
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.
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.
Pakistan International Airlines Flight 705 (PK705) was a Boeing 720 airliner that crashed while descending to land at Cairo International Airport on 20 May 1965. Of the 127 passengers and crew on board, all but 6 were killed.
All Nippon Airways (ANA) Flight 60 was a Boeing 727-81 aircraft making a domestic commercial flight in Japan from Sapporo Chitose Airport to Tokyo Haneda International Airport. On February 4, 1966, all 133 people on board died when the plane mysteriously crashed into Tokyo Bay about 10.4 km from Haneda in clear weather conditions while on a night approach. The accident was the worst involving a single aircraft in Japan and also the deadliest accident in the country until All Nippon Airways Flight 58 crashed five years later, killing 162 people.
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, causing injuries.
On October 19, 2021, a corporate McDonnell Douglas MD-87, registered as N987AK, crashed and caught fire during take-off, 1,600 feet (500 m) from Houston Executive Airport. Those on board, 19 passengers and four crew members, were safely evacuated out of the aircraft. The aircraft was damaged beyond repair and was subsequently written-off.
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