The cause of the full fire scrap of the full cargo aircraft of Shanghai Pudong Airport found that th
- Author:Elena
- Release Date:2023-03-13
According to upstream news reports, on July 22, 2020, Ethiopian Airlines (hereinafter referred to as Ethiopian Aviation), a Boeing 777 full cargo aircraft that performs international freight flights, completes the cargo loading of goods at the 306 Pudong Airport Airport, and waited for the door closure.When leaving Hong Kong, the cargo aircraft found that there was a fire alarm in the cargo cabin, and there was a visible smoke and a bright fire appeared in the main cargo cabin. Then the unit announced on the ground to announce the highest danger signal "Mayday" on the ground.After nearly three hours of rescue, this Boeing 777F full-cargo aircraft number named ET-ARH was extinguished. The relevant news became the focus of major media attention on the same day.
On January 7, 2023, the air accident survey report obtained by upstream journalists showed that the reason for the fire of the Ethiopian Airlines cargo is not the aircraft electrical faults of the aircraft in public opinion, and the lithium battery cargo fire.The reason for the fire is: the spontaneous combustion of chlorine dioxide disinfection tablets loaded in the main cargo cabin caused the fire in high temperature and humid environment, which directly led to the scrap of the full cargo machine with an average market price of about 2.3 billion yuan.
The cause of the full fire scrap of the full cargo aircraft of Shanghai Pudong Airport found that the main cargo is self -ignited
▲ Ethiopian aircraft was severely damaged.Image source/upstream news, interviewees supply pictures
元 Fire before the aircraft worth 2.3 billion yuan
The 777-200 model launched by Boeing is the first model among the Boeing 777 family. The first machine was released in 1990.The Ethiopian Airlines B777-200LR is a long-range model of Boeing 777-200. When it was put into use in 2006, it was the longest-range passenger plane in the world at that time. The range reached more than 17,500 kilometers and could fly for 18 hours.Based on the price of an order in recent years in Emirates and Boeing, the price of a single Boeing 777-200LR cargo aircraft is US $ 340 million, which is about RMB 2.3 billion.
On July 22, 2020, Et-Aarh, Ethiopian's Boeing B777-200LR full cargo aircraft, performed a freight flight from Belruz to Shanghai Pudong, and stopped at No. 306 Pudong Airport.During the short stop of the aircraft, after completing the unloading and loading work and replacing 5 crew members, it was ready to perform the next section of ET3739 flight from Shanghai Pudong via Chongqing to the capital of Ethiopia. The flight is expected to be in Beijing.Take off at 14:30 on the same day.Because of the loading of the cargo, the ET3739 flight was completed and closed the cargo door at about 15 o'clock on the same day. The aircraft was loaded with 69.3 tons of goods collected from all over the country.No abnormalities occur during the loading process.
At 15:14 and 04 seconds on the same day, the danger began to appear. The ET3739 units reported the aircraft of the aircraft main cargo compartment to Pudong Airport's release frequency in English and needed fire vehicles.At 15:19 after 5 minutes, the unit contacted the ground control again, urging the fire truck to come as soon as possible.At 15:21:32, the Ethiopian Airlines ET3739 flight crew issued the highest -level call -for -rescue signal "Mayday" on the ground on Pudong Airport.At 15:25, Pudong Airport fire truck reached 306 aircraft, but no smoke or bright fire was found at the fire report site.The aircraft's left front door and the cargo cabin door were then opened one after another. The unit also evacuated the plane. At 15:35, the aircraft main cargo cabin appeared in a bright fire. The fire truck at the scene began to extinguish the fire.
In Ethiopian Airlines, during the fire rescue of the cargo aircraft, not only did Pudong Airport Fire participate in the fire extinguishing rescue work., Longyang and other fire stations, various types of combat, command, communication and other duty vehicles and more than 200 firefighter finger reminders should be disposed of.At 18:14 after three hours, the fire was controlled at the scene.
Upstream journalists noticed that during the entire rescue period, the busy Shanghai Pudong Airport announced its closure at 16:40. It was only 18:30 in the past two hours before it was restored to operation.34 flight delays.
The cause of the full fire scrap of the full cargo aircraft of Shanghai Pudong Airport found that the main cargo is self -ignited
▲ Ethiopian cargo aircraft.Picture Source/CCTV News
锂 Aircraft failure, lithium battery fire and other reasons are excluded
After the on -site emergency response, the Ethiopian air freight air freight aircraft fired immediately turned into the accident investigation.According to the authorization of the Civil Aviation Administration of China, the East China East Bureau of China has been responsible for the specific investigation of the matter.The investigation team's on-site investigation found that the aircraft overfire area was limited to the Ethiopian Airlines B777-200LR/ET-RH aircraft, and the upper part of the fuselage was burned through, and the main cargo cabin was severely burned.The structure and equipment of the lower body are cigarettes. Although the appearance remains intact, there may be heat damage.No significant overflows and smoke marks were obvious in fuselage parts such as the outer wing area, engine area, and landing rack area.
During the survey, the investigation team first conducted a survey of the Boeing 777-200LR full-cargo aircraft ET-ARH. As of the incident, the cargo aircraft leaned out in September 2014 completed a total of 4286 flights and falls. The total flight time was 26740 hours.Before the flight took off, the random aircraft personnel of Ethiopia had completed a short stop inspection of the aircraft. As a result, there were no failure failures. The regular inspections completed about one month before the aircraft incident were normal.On the day of the incident, the live video surveillance of Pudong Airport showed that from the main cargo cabin to the fire alarm to the main cargo door, there was no smoke overflowing the fuselage parts.The crew also reported that no other warning or failure information was found except the smoke alarm. The suspicion of spontaneous combustion caused by the fault of the aircraft itself was excluded.
Upstream journalists noticed that in recent years, there have been too many lithium batteries at home and abroad that causes fire alarms in the aircraft. After the Ethiopian air fire incident, some public opinion questioned whether it was because the cargo machine containing lithium battery cargo carried spontaneous combustion and spontaneous combustion occurred.EssenceWhen investigating the loading of cargo in the investigation team, the freight warehouse receipt information shows that there are nearly 70 tons of goods on the Ethiopian airfire, mainly loading epidemic prevention materials such as masks, thermometers, and protective clothing. Among them, 4 votes contain lithium battery electronic products.There is no application for other dangerous goods.
The investigation team found that 4 votes contain lithium batteries.After the on -site investigation, the 50 mesh -type atomizers and the 15th sea letter receiving machines found at the scene were consistent with the name, quantity, and location of the transportation form.The staff also found that the mesh -type atomizer was basically intact after inspection of each device, and only some of the plastic boxes were melted; only 2 of the 15 seabel receipt machines were severely burned.The discoloration is light and inside, and the internal circuit board is basically intact. Lithium battery -related items and other items are confirmed to be caused by external fires. Lithium batteries caught fire caused by the spontaneous combustion of the aircraft.
The eyes of the investigation team returned to the scene again. First of all, the problem that needed to be solved was the determination of the aircraft fire position.On -site exploration shows that the cargo of the PR position of the aircraft's main cargo compartment is the most serious. The body shell structure corresponding to this position has the lowest burning position.EssenceInvestigators combined with the earliest faulty areas displayed by the earliest ductal parts and cargo cabin smoke detection controllers, the investigators comprehensively determined that the fire point was located at the PR position on the right side of the main cargo cabin.
The investigation team further investigated found that the goods loaded in the PR position include a total of 6 votes. The goods recorded in the transport form include the antibody detection kit, the collection machine containing lithium batteries, the nano -most -release materials containing chlorine dioxideFlower tea and so on.After excluding the suspicion of the lithium battery receipt machine, nano -mild release cleaning materials containing chlorine dioxide became the focus of the investigation.
缓 Where does the chlorine nano -nano -release material come from?
The cause of the full fire scrap of the full cargo aircraft of Shanghai Pudong Airport found that the main cargo is self -ignited
▲ The report believes that the biggest cause of fire is the spontaneous combustion of chlorine dioxide.Image source/upstream news, accident investigation report
The materials obtained by the upstream journalist show that the cargo containing chlorine dioxide is purchased and consigned by Xu from Xu in Zhejiang. The goods are mainly used for epidemic prevention and disinfection.On June 22, 2020, the owner Xu signed the domestic supplier and signed a chlorine dioxide disinfection machine and a "disinfection shield" purchase contract containing chlorine dioxide.The method is sent to the consignee.Aviation cargo transportation statistics show that there are 96 cases of cargo involving chlorine dioxide, including a total of 10,000 packets of anti -disinfection powder and a mixed packaging of 100 bags of chlorine dioxide disinfection tablets.
The cargo appraisal certificate made by the Shanghai Chemical Research Institute provided by the cargo owner shows that the nano -most -release and cleaning materials involved (including 1%chlorine dioxide are adsorbed on the nano -material) as "non -restricted goods", nano -mitigation and cleaning materials (powdered powder (powder latticeGranules) are "dangerous goods", and the danger is "oxidant (main), corrosive (times)".
After the investigation team confirmed the information of the fire site, the fire point, etc., it used the exclusion method to investigate the human destruction, the fire type, lithium battery fire, and the aircraft electrical fire. After excluding the above reasonsIn the state, the goods loaded by the fire point position were investigated, and the suspicious goods were verified, and the fire items were determined that the fire -dioxide disinfection tablets were determined.
Why does the chlorine dioxide used for epidemic prevention and disinfection caught fire in the aircraft cargo compartment?Investigators found that the meteorological data of Pudong Airport showed that the temperature in Shanghai on the day of the incident was up to 34 degrees, and the open -air stacking method was generally used in domestic air cargo stations.The chlorine dioxide disinfection tablets found at the fire point PR cargo panel are dangerous for spontaneous combustion under high temperature and moisture.
The root simulation experiments conducted by investigators confirmed that under the same meteorological conditions on the day of the incident on July 22, 2020, the temperature inside the stack was much higher than the ambient temperature, and the phenomenon of knotting will appear in the inside of the film. At the same time, because the heat dissipation was unfavorable,With sufficient conditions for spontaneous combustion.The investigation team judged that the maximum possibility of this freight aircraft ground was likely to cause fires due to spontaneous combustion of chlorine dioxide disinfection tablets on the carrier.
The cause of the full fire scrap of the full cargo aircraft of Shanghai Pudong Airport found that the main cargo is self -ignited
▲ Simulation experiments have confirmed that the internal temperature of the goods stacked in the open -air can reach 80 degrees Celsius.Image source/upstream news, accident investigation report
瞒 Logistics consignment and concealment many factors superposition will eventually cause great disasters
Upstream news reporters combed and found that spontaneous combustible chlorine oxide products on the Ethiopian air cargo aircraft had been identified by professional institutions as "dangerous goods" before consignment, but why did it be unimpeded to the plane?
The survey shows that during the consignment process, the goods provided by the cargo owner to the consignment unit Zhejiang Jetong are called "smart spray machine, chlorine dioxide disinfection shield, chlorine dioxide disinfection agent, packaging bag and sealing machine".The chemicals contained in this ticket have two identification certificates corresponding to the appraisal conclusions. The identification conclusions are "non -restricted goods" and "dangerous goods". After communicating with the owner of the owner Wang, Jettong decided to use the appraisal conclusion as the conclusion as the conclusion as the conclusion as the conclusion as the conclusion as the conclusion as the conclusion as the conclusion.The sample name of "Non -Restricted Cargo" "Nano -Smooth -release cleaning material (including 1%chlorine dioxide adsorb on nano -material)" carried out follow -up commission business and only declared the goods named "nano -sustained release materials (including 1%1%, including 1%"Chlorine dioxide is adsorbed on nanomaterials)", and did not realize the actual dangerous goods disinfection powder and chlorine disinfection tablets in the cargo. "The behavior is suspected of concealing the name of the goods and consignment of dangerous goods by non -dangerous goods."
The investigation team further discovered that when the most spontaneous combustion -related chlorine dioxide products were performed two days before the incident, the security inspection personnel were paying attention to the granular substances of suspected chemicals in the goods, and accordingly, the boxer was also the boxer.A instructions are issued to check the chemical transportation documents.The out -of -the -box security inspection personnel then checked the outer packaging of the cargo and the transportation documents. It was confirmed that the name of the goods was consistent with the transportation documents. After checking the crickets, images, and transportation documents, the security inspection personnel were released on the box of the goods.
Regarding whether the work of Pudong Airport's freight security inspection involves illegal regulations, the investigation team checked the image containing the chlorine dioxide cargo through the X -ray machine. The image shows that related suspicious areas and the nano -mild release materials "Appraisal of the Condition Conditions" of the "Sample appearance" of the "Sample appearance""The granularity described in the column is in line with the operation of the airport's cargo security inspection.
After a complete and detailed work, the investigation team found that the most likely cause of the Ethiopian Aviation Boeing 777 Pudong Airport Fire accident was that the chlorine dioxide disinfection tablets loaded in the main cargo cabin spontaneously ignited in high temperature and humid environments, causing fires.No disaster consequences such as the fuel tank explosion, the disintegration of the aircraft, and the casualties.In addition, there are also Pudong Airport's apron control staff in the incident that did not accurately and complete the emergency status, cargo cabin fire, etc., and the Ethiopian aviation units did not follow the handbook door and did not perform emergency evacuation emotions.Risk hidden dangers.
According to the relevant conclusions, the investigation report is recommended to further study and refine the conditions for aviation transportation conditions for different contents of chlorine dioxide disinfection supplies. It is recommended that Pudong Airport further strengthen training in the use of standard terms in the process of information transmission to ensure accurate and smooth emergency handling information.For Ethiopia Airlines, the investigation report recommends that the company improves the emergency response capabilities to ensure that the flight unit operating manual and the company's operating manuals can be correctly completed.
The upstream news learned that in response to the loss of the loss of the Ethiopian Aviation Boeing 777 cargo aircraft, the Civil Aviation Administration of China and Ethiopia have not yet disclosed relevant information to the outside world.
On January 7, 2023, the air accident survey report obtained by upstream journalists showed that the reason for the fire of the Ethiopian Airlines cargo is not the aircraft electrical faults of the aircraft in public opinion, and the lithium battery cargo fire.The reason for the fire is: the spontaneous combustion of chlorine dioxide disinfection tablets loaded in the main cargo cabin caused the fire in high temperature and humid environment, which directly led to the scrap of the full cargo machine with an average market price of about 2.3 billion yuan.
The cause of the full fire scrap of the full cargo aircraft of Shanghai Pudong Airport found that the main cargo is self -ignited
▲ Ethiopian aircraft was severely damaged.Image source/upstream news, interviewees supply pictures
元 Fire before the aircraft worth 2.3 billion yuan
The 777-200 model launched by Boeing is the first model among the Boeing 777 family. The first machine was released in 1990.The Ethiopian Airlines B777-200LR is a long-range model of Boeing 777-200. When it was put into use in 2006, it was the longest-range passenger plane in the world at that time. The range reached more than 17,500 kilometers and could fly for 18 hours.Based on the price of an order in recent years in Emirates and Boeing, the price of a single Boeing 777-200LR cargo aircraft is US $ 340 million, which is about RMB 2.3 billion.
On July 22, 2020, Et-Aarh, Ethiopian's Boeing B777-200LR full cargo aircraft, performed a freight flight from Belruz to Shanghai Pudong, and stopped at No. 306 Pudong Airport.During the short stop of the aircraft, after completing the unloading and loading work and replacing 5 crew members, it was ready to perform the next section of ET3739 flight from Shanghai Pudong via Chongqing to the capital of Ethiopia. The flight is expected to be in Beijing.Take off at 14:30 on the same day.Because of the loading of the cargo, the ET3739 flight was completed and closed the cargo door at about 15 o'clock on the same day. The aircraft was loaded with 69.3 tons of goods collected from all over the country.No abnormalities occur during the loading process.
At 15:14 and 04 seconds on the same day, the danger began to appear. The ET3739 units reported the aircraft of the aircraft main cargo compartment to Pudong Airport's release frequency in English and needed fire vehicles.At 15:19 after 5 minutes, the unit contacted the ground control again, urging the fire truck to come as soon as possible.At 15:21:32, the Ethiopian Airlines ET3739 flight crew issued the highest -level call -for -rescue signal "Mayday" on the ground on Pudong Airport.At 15:25, Pudong Airport fire truck reached 306 aircraft, but no smoke or bright fire was found at the fire report site.The aircraft's left front door and the cargo cabin door were then opened one after another. The unit also evacuated the plane. At 15:35, the aircraft main cargo cabin appeared in a bright fire. The fire truck at the scene began to extinguish the fire.
In Ethiopian Airlines, during the fire rescue of the cargo aircraft, not only did Pudong Airport Fire participate in the fire extinguishing rescue work., Longyang and other fire stations, various types of combat, command, communication and other duty vehicles and more than 200 firefighter finger reminders should be disposed of.At 18:14 after three hours, the fire was controlled at the scene.
Upstream journalists noticed that during the entire rescue period, the busy Shanghai Pudong Airport announced its closure at 16:40. It was only 18:30 in the past two hours before it was restored to operation.34 flight delays.
The cause of the full fire scrap of the full cargo aircraft of Shanghai Pudong Airport found that the main cargo is self -ignited
▲ Ethiopian cargo aircraft.Picture Source/CCTV News
锂 Aircraft failure, lithium battery fire and other reasons are excluded
After the on -site emergency response, the Ethiopian air freight air freight aircraft fired immediately turned into the accident investigation.According to the authorization of the Civil Aviation Administration of China, the East China East Bureau of China has been responsible for the specific investigation of the matter.The investigation team's on-site investigation found that the aircraft overfire area was limited to the Ethiopian Airlines B777-200LR/ET-RH aircraft, and the upper part of the fuselage was burned through, and the main cargo cabin was severely burned.The structure and equipment of the lower body are cigarettes. Although the appearance remains intact, there may be heat damage.No significant overflows and smoke marks were obvious in fuselage parts such as the outer wing area, engine area, and landing rack area.
During the survey, the investigation team first conducted a survey of the Boeing 777-200LR full-cargo aircraft ET-ARH. As of the incident, the cargo aircraft leaned out in September 2014 completed a total of 4286 flights and falls. The total flight time was 26740 hours.Before the flight took off, the random aircraft personnel of Ethiopia had completed a short stop inspection of the aircraft. As a result, there were no failure failures. The regular inspections completed about one month before the aircraft incident were normal.On the day of the incident, the live video surveillance of Pudong Airport showed that from the main cargo cabin to the fire alarm to the main cargo door, there was no smoke overflowing the fuselage parts.The crew also reported that no other warning or failure information was found except the smoke alarm. The suspicion of spontaneous combustion caused by the fault of the aircraft itself was excluded.
Upstream journalists noticed that in recent years, there have been too many lithium batteries at home and abroad that causes fire alarms in the aircraft. After the Ethiopian air fire incident, some public opinion questioned whether it was because the cargo machine containing lithium battery cargo carried spontaneous combustion and spontaneous combustion occurred.EssenceWhen investigating the loading of cargo in the investigation team, the freight warehouse receipt information shows that there are nearly 70 tons of goods on the Ethiopian airfire, mainly loading epidemic prevention materials such as masks, thermometers, and protective clothing. Among them, 4 votes contain lithium battery electronic products.There is no application for other dangerous goods.
The investigation team found that 4 votes contain lithium batteries.After the on -site investigation, the 50 mesh -type atomizers and the 15th sea letter receiving machines found at the scene were consistent with the name, quantity, and location of the transportation form.The staff also found that the mesh -type atomizer was basically intact after inspection of each device, and only some of the plastic boxes were melted; only 2 of the 15 seabel receipt machines were severely burned.The discoloration is light and inside, and the internal circuit board is basically intact. Lithium battery -related items and other items are confirmed to be caused by external fires. Lithium batteries caught fire caused by the spontaneous combustion of the aircraft.
The eyes of the investigation team returned to the scene again. First of all, the problem that needed to be solved was the determination of the aircraft fire position.On -site exploration shows that the cargo of the PR position of the aircraft's main cargo compartment is the most serious. The body shell structure corresponding to this position has the lowest burning position.EssenceInvestigators combined with the earliest faulty areas displayed by the earliest ductal parts and cargo cabin smoke detection controllers, the investigators comprehensively determined that the fire point was located at the PR position on the right side of the main cargo cabin.
The investigation team further investigated found that the goods loaded in the PR position include a total of 6 votes. The goods recorded in the transport form include the antibody detection kit, the collection machine containing lithium batteries, the nano -most -release materials containing chlorine dioxideFlower tea and so on.After excluding the suspicion of the lithium battery receipt machine, nano -mild release cleaning materials containing chlorine dioxide became the focus of the investigation.
缓 Where does the chlorine nano -nano -release material come from?
The cause of the full fire scrap of the full cargo aircraft of Shanghai Pudong Airport found that the main cargo is self -ignited
▲ The report believes that the biggest cause of fire is the spontaneous combustion of chlorine dioxide.Image source/upstream news, accident investigation report
The materials obtained by the upstream journalist show that the cargo containing chlorine dioxide is purchased and consigned by Xu from Xu in Zhejiang. The goods are mainly used for epidemic prevention and disinfection.On June 22, 2020, the owner Xu signed the domestic supplier and signed a chlorine dioxide disinfection machine and a "disinfection shield" purchase contract containing chlorine dioxide.The method is sent to the consignee.Aviation cargo transportation statistics show that there are 96 cases of cargo involving chlorine dioxide, including a total of 10,000 packets of anti -disinfection powder and a mixed packaging of 100 bags of chlorine dioxide disinfection tablets.
The cargo appraisal certificate made by the Shanghai Chemical Research Institute provided by the cargo owner shows that the nano -most -release and cleaning materials involved (including 1%chlorine dioxide are adsorbed on the nano -material) as "non -restricted goods", nano -mitigation and cleaning materials (powdered powder (powder latticeGranules) are "dangerous goods", and the danger is "oxidant (main), corrosive (times)".
After the investigation team confirmed the information of the fire site, the fire point, etc., it used the exclusion method to investigate the human destruction, the fire type, lithium battery fire, and the aircraft electrical fire. After excluding the above reasonsIn the state, the goods loaded by the fire point position were investigated, and the suspicious goods were verified, and the fire items were determined that the fire -dioxide disinfection tablets were determined.
Why does the chlorine dioxide used for epidemic prevention and disinfection caught fire in the aircraft cargo compartment?Investigators found that the meteorological data of Pudong Airport showed that the temperature in Shanghai on the day of the incident was up to 34 degrees, and the open -air stacking method was generally used in domestic air cargo stations.The chlorine dioxide disinfection tablets found at the fire point PR cargo panel are dangerous for spontaneous combustion under high temperature and moisture.
The root simulation experiments conducted by investigators confirmed that under the same meteorological conditions on the day of the incident on July 22, 2020, the temperature inside the stack was much higher than the ambient temperature, and the phenomenon of knotting will appear in the inside of the film. At the same time, because the heat dissipation was unfavorable,With sufficient conditions for spontaneous combustion.The investigation team judged that the maximum possibility of this freight aircraft ground was likely to cause fires due to spontaneous combustion of chlorine dioxide disinfection tablets on the carrier.
The cause of the full fire scrap of the full cargo aircraft of Shanghai Pudong Airport found that the main cargo is self -ignited
▲ Simulation experiments have confirmed that the internal temperature of the goods stacked in the open -air can reach 80 degrees Celsius.Image source/upstream news, accident investigation report
瞒 Logistics consignment and concealment many factors superposition will eventually cause great disasters
Upstream news reporters combed and found that spontaneous combustible chlorine oxide products on the Ethiopian air cargo aircraft had been identified by professional institutions as "dangerous goods" before consignment, but why did it be unimpeded to the plane?
The survey shows that during the consignment process, the goods provided by the cargo owner to the consignment unit Zhejiang Jetong are called "smart spray machine, chlorine dioxide disinfection shield, chlorine dioxide disinfection agent, packaging bag and sealing machine".The chemicals contained in this ticket have two identification certificates corresponding to the appraisal conclusions. The identification conclusions are "non -restricted goods" and "dangerous goods". After communicating with the owner of the owner Wang, Jettong decided to use the appraisal conclusion as the conclusion as the conclusion as the conclusion as the conclusion as the conclusion as the conclusion as the conclusion as the conclusion.The sample name of "Non -Restricted Cargo" "Nano -Smooth -release cleaning material (including 1%chlorine dioxide adsorb on nano -material)" carried out follow -up commission business and only declared the goods named "nano -sustained release materials (including 1%1%, including 1%"Chlorine dioxide is adsorbed on nanomaterials)", and did not realize the actual dangerous goods disinfection powder and chlorine disinfection tablets in the cargo. "The behavior is suspected of concealing the name of the goods and consignment of dangerous goods by non -dangerous goods."
The investigation team further discovered that when the most spontaneous combustion -related chlorine dioxide products were performed two days before the incident, the security inspection personnel were paying attention to the granular substances of suspected chemicals in the goods, and accordingly, the boxer was also the boxer.A instructions are issued to check the chemical transportation documents.The out -of -the -box security inspection personnel then checked the outer packaging of the cargo and the transportation documents. It was confirmed that the name of the goods was consistent with the transportation documents. After checking the crickets, images, and transportation documents, the security inspection personnel were released on the box of the goods.
Regarding whether the work of Pudong Airport's freight security inspection involves illegal regulations, the investigation team checked the image containing the chlorine dioxide cargo through the X -ray machine. The image shows that related suspicious areas and the nano -mild release materials "Appraisal of the Condition Conditions" of the "Sample appearance" of the "Sample appearance""The granularity described in the column is in line with the operation of the airport's cargo security inspection.
After a complete and detailed work, the investigation team found that the most likely cause of the Ethiopian Aviation Boeing 777 Pudong Airport Fire accident was that the chlorine dioxide disinfection tablets loaded in the main cargo cabin spontaneously ignited in high temperature and humid environments, causing fires.No disaster consequences such as the fuel tank explosion, the disintegration of the aircraft, and the casualties.In addition, there are also Pudong Airport's apron control staff in the incident that did not accurately and complete the emergency status, cargo cabin fire, etc., and the Ethiopian aviation units did not follow the handbook door and did not perform emergency evacuation emotions.Risk hidden dangers.
According to the relevant conclusions, the investigation report is recommended to further study and refine the conditions for aviation transportation conditions for different contents of chlorine dioxide disinfection supplies. It is recommended that Pudong Airport further strengthen training in the use of standard terms in the process of information transmission to ensure accurate and smooth emergency handling information.For Ethiopia Airlines, the investigation report recommends that the company improves the emergency response capabilities to ensure that the flight unit operating manual and the company's operating manuals can be correctly completed.
The upstream news learned that in response to the loss of the loss of the Ethiopian Aviation Boeing 777 cargo aircraft, the Civil Aviation Administration of China and Ethiopia have not yet disclosed relevant information to the outside world.