On April 25, 2020, the Gulfstream G550, a top-level business aircraft parked at Chengdu Shuangliu International Airport, was hit on the right wing and punctured by a “foreign body from the sky”
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About 10 months after the incident, the aviation safety committee of Sichuan civil aviation safety supervision and administration released the investigation report on the incident on the 20th of this month
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The south side of the aircraft is near a construction site
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The source of this picture is the investigation report
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According to the investigation report obtained from surging news, the foreign matter that hit the Gulfstream G550 aircraft came from the subway construction area outside the airport, which was caused by the explosion of the gantry crane at the construction site, resulting in the fragments flying into the entrance and hitting the wing of the aircraft
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The repair cost of the aircraft is estimated to be US $28.8 million (about RMB 186 million), more than 60% of the new aircraft price of US $45 million
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At present, the owner of the machine, international machinery and equipment import and export trade Co., Ltd., is still waiting for compensation from relevant units
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According to the investigation report, on April 13, 2020, the G550 / b-8275 aircraft hosted by Beijing Hanyu Aviation Co., Ltd
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stopped at Shuangliu Airport 618 after the flight mission from Hangzhou to Chengdu
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During the parking period, the aircraft was not damaged
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On April 14, the plane was towed to position 508 and stopped until the incident, during which the plane did not move
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Damage of wing internals
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At 9:28 on April 26, the cleaner of Shuangliu Airport reported that screws and other parts were found under the b-8275 aircraft in 508 slot
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Apron supervisor rushed to the scene immediately and found that the right wing of b-8275 was damaged
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Hanyu aviation maintenance inspection found that the middle part of the right wing of the aircraft was punctured, and there was a massive metal residue inside the damaged wing
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After receiving the incident report, Sichuan regulatory bureau immediately rushed to the scene to carry out investigation as authorized by Southwest administration
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The aircraft involved was Gulfstream g550b-8275 aircraft hosted by Beijing Hanyu Aviation Co., Ltd
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(hereinafter referred to as “Hanyu aviation”)
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After on-site investigation and acquisition of apron surveillance video, it was confirmed that the right wing of G550 / b-8275 was hit by a flying metal object
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Schematic diagram of the location of the aircraft and the construction site at the time of the incident
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The apron surveillance video shows that at 3:37:11 a.m
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on April 25, a foreign object hit the right wing of the aircraft
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Judging from the residual image of foreign objects, the direction of foreign objects is the tail of the aircraft
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Before the plane was hit, there was no damage to the right wing
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After the plane was hit, there was obvious shaking of the fuselage and damage to the right wing
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Surging news noted that the scene of the incident was located at 508 parking lot on the east side of the 20L runway end of Shuangliu Airport, a newly expanded parking lot in recent years, with 508 parking lot as the center and the East, West and north sides of the parking lot area
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Wing surface damage
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As the incident involved non civil aviation units, Sichuan regulatory bureau coordinated with Sichuan Provincial Public Security Department and Airport Public Security Bureau to participate in the investigation
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After more than one month’s visit, investigation and analysis, it was finally confirmed that the metal object came from the construction area outside the airport boundary on the south side of 508
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According to the investigation report, at about 3:37 a.m
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on April 25, 2020, a gantry crane in the construction area broke down and exploded during construction, causing the brake wheel of its main lifting mechanism to break, the broken parts flew out and hit the right wing of the aircraft
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According to the investigation report, the construction site involved is No
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3 civil engineering work area of Chengdu rail transit line 19 phase II project
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The third-party appraisal company also confirmed that the metal residues on the right wing of b-8275 aircraft and the gantry crane in the construction area outside the airport boundary south of 508 stand were the broken parts of the brake wheel of the main lifting mechanism of the gantry crane in the construction area
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The remnant is an arc-shaped metal block, which is left in the right wing
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The fracture side is 60cm long and 25cm wide
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It hit the upper surface of the right wing from top to bottom, causing penetrating damage to the right wing
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The upper surface of the wing is 88cm * 60cm open damage, and the lower surface is 60cm * 45cm through damage
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The internal beam and stringer are fractured in different degrees, and the fuel return pipe is fractured
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The length of the broken side is 60cm, the width is 25cm, and the distance between the center point and the circular edge is 26cm
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Gulfstream G550 is one of the world’s top long-range business jet models
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It is launched by Gulfstream aerospace company of the United States
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Its range can reach Tokyo directly from New York
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Because of its excellent performance and cabin comfort, many rich people choose it as a private aircraft
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According to upstream news reports, the b-8275 fuselage is painted with the logo of Hongda Group, a local enterprise in Sichuan
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In this regard, Chengdu Business Daily once reported that the b-8275 aircraft was the “Hongda” business aircraft used by Liu Canglong, chairman of the board of directors of Hongda Group
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According to the above survey report, the maximum takeoff weight of Gulfstream G550 is about 41 tons, ranging from 5.7 tons to 50 tons
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After consulting Gulfstream, Hanyu Aerospace estimated that the repair cost of the b-8275 aircraft would be $28.8 million, more than 60% of the new aircraft price (US $45 million)
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At present, the b-8275 aircraft is no longer in the custody of Hanyu aviation
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The owner of the aircraft, international machinery and equipment import and export trade Co., Ltd., is still waiting for compensation from relevant units
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The final disposal method of the aircraft is still uncertain
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According to the current estimated repair cost, this event constitutes a major ground accident due to other reasons
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According to the investigation, Sichuan regulatory bureau suggests Shuangliu Airport to sort out the construction sites which are close to the surrounding area, and give priority to parking the aircraft to the sites which are far away from the construction site when there are enough parking spaces
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