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Recently, the Aviation Safety Committee of the Sichuan Province Safety Oversight Administration issued a civil aircraft incident investigation report, announcing the results of the investigation of the accident involving the Gulfstream G550 private jet that resulted damaged at Chengdu Shuangliu International Airport on April 26, 2020. According to the report, at 9:28 AM on April 26, 2020, the Shuangliu Airport Cleaner reported that screws and other parts were found under the aircraft in the stand 508. The apron supervisor immediately rushed to the scene and discovered that the right wing of the aircraft was damaged. Subsequent maintenance inspections found that, Half of the right wing of the aircraft was punctured, and an iron object remained inside the damaged wing port.
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The incident aircraft wasGulfstream G550 / B-8275 business private jet hosted by Beijing Hanyu Aviation Co., Ltd.At that time, in the construction area outside the airport boundary on the south side of the landing post, a gantry crane failed during construction work, causing an explosion, and the broken parts of the brake wheel of the lifting mechanism main flew. and hit the plane.
After Hanzi Airlines consulted Gulfstream, the repair cost for the B-8275 plane is estimated at $ 28.8 million, or about 186 million yuan, while the price of the new plane is $ 45 million. Americans, or about 290 million yuan. % of the price of the machine.
Currently, the B-8275 aircraft is no longer in the custody of Chinese character aviation. The owner of the aircraft, International Machinery and Equipment Import and Export Trade Co., Ltd., is still awaiting compensation from the relevant units, and the final disposal method of the aircraft is still uncertain.
Based on currently estimated repair costs, the incident constitutes a major ground accident for other reasons.
Gulfstream G550 business jet (Gulfstream G550), launched by Gulfstream Aerospace Corporation in 2003,It is one of the most important representative models of long-range business jets in the world, and it is also the first ultra-long-range business jet that can fly directly from New York to Tokyo in the history of human flight.It has a range of 11,686 kilometers, a maximum cruising altitude of 15,545 meters, can carry 18 passengers and a maximum take-off weight of around 41 tons, which is between 5.7-50 tons.Today it is a luxury business jet with the longest range, best features, most spacious cabin and best comfort in China.
The following is a detailed research report:
Incident environment
The scene of the incident was located at Booth 508 on the cargo platform east of the end of runway 20L at Shuangliu Airport.
This is an open space centered on booth 508. The east, west and north sides are all platform areas. There is a construction site about 200 meters outside the airport fence on the south side. The site is Chengdu Rail Transit Line 2 Phase 3 civil engineering works.
The surrounding environment of the incident is shown in the following figure:
Aircraft damage
Flying foreign objects strike the upper surface of the aircraft’s right wing (Figure 2) from top to bottom, causingPenetrating injury to the right wing.
The upper surface of the large wing has 88 cm * 60 cm of open damage (Figure 3), and the lower surface measures 60 cm * 45 cm of damage (Figure 4). The internal beams and stringers are broken to varying degrees, and the fuel return pipe is broken (Figures 5 and 6).
Metal waste situation
The residue is an arc-shaped metal block, on the left on the right wing, the fractured side is 60 cm long, 25 cm wide, and the distance between the center point and the round edge is 26 cm (see Figure 7).
State of the aircraft
The B-8275 aircraft is the G550 produced by Gulfstream, with the production line number 5414.It was delivered on June 27, 2013, with a total flight hours of 1,094.2 hours, a cycle of 447 and an APU usage of 1,683.5 hours.
The owner of the aircraft is International Machinery and Equipment Import and Export Trading Co., Ltd., which was managed by Hanyu Aviation at the time of the incident.
Aerodrome surveillance video
According to surveillance video of the aircraft, at 3:37:11 on April 25, 2020, a foreign object struck the right wing of the aircraft.
Judging from the afterimage of the foreign objects before the plane was hit on video surveillance, the direction of the foreign objects was the direction of the tail of the plane.
Before the plane was hit, the right wing of the plane was not damaged, but after the plane was hit, the fuselage obviously vibrated and the right wing was damaged.
Security Council
Chengdu Shuangliu Airport classifies construction sites near the fence, and if there are enough seats, priority will be given to arrange aircraft parking at a greater distance from the construction site to prevent accidental foreign objects from flying onto the apron and damaging the plane. .
