SINGAPORE - A rapid change in gravitational forces in 4.6 seconds caused a Singapore Airlines flight last week to fall 178 feet, potentially causing injuries to crew and passengers, according to findings of a preliminary investigation into the ongoing serious turbulence incident. It's gone. Wednesday.
On 21 May, flight SQ321, en route from London to Singapore, suddenly experienced severe turbulence over the Irrawaddy Basin in Myanmar during breakfast service. One British passenger died and dozens were injured. Passengers described the incident as horrifying.The preliminary report issued by investigators from the Transport Safety Investigation Bureau (TSIB) is based on preliminary analysis using data stored in the plane's flight data recorder and cockpit voice recorder, The Straits Times newspaper reports.
Investigators found that the plane, a Boeing 777-300ER, was flying at an altitude of 37,000 feet south of Myanmar and near a developing typhoon area in the afternoon when turbulence caused a drop of between +0.44 g and +1.57 g for the 19th. The ups and downs started. sec.
G-forces measure rapid acceleration or deceleration by comparing them to the normal pull of gravity on Earth, which is considered +1g. Therefore, at +1.57 grams the person will feel as if they weigh 1.57 times their body weight.
Passengers on the SQ321 will also start to feel a slight vibration in the plan.The aircraft began to climb and reached an altitude of 37,362 F. It was at this point that the pilots turned on the seat bail sign as the aircraft's autopilot tried to bring the aircraft to its designated cruise altitude.
Eight seconds later, the aircraft experienced a rapid change in G-forces from +1.35 g to -1.5 g within 0.6 seconds. Negative G-forces move in the opposite direction of gravity, giving people a feeling of "lightness" or "floating."
In the case of SQ321, it caused those passengers and crew who had not managed to fasten their seat belts to go airborne, and the g-forces went from -1.5 g back to +1.5 g in four seconds.Due to this the aircraft fell from 37,362 feet to 37,184 feet and all the air passengers fell back down.
"The rapid change in g over a 4.6-second period resulted in a loss of altitude of 178 feet...This sequence of events likely resulted in injuries to the crew and passengers," the report said.
During this time the pilots tried to maintain control of the aircraft to stabilize it, removing the autopilot in the process, before it was reactivated and began descending to divert to Bangkok's Suvarnabhumi Airport. Gave, landing at 4.45 pm.
The TSIB is the investigating authority for air, maritime and rail accidents and incidents in Singapore and is part of the Ministry of Transport. The investigation team included TSIB investigators and representatives from the US National Transportation Safety Board, the Federal Aviation Administration and aircraft manufacturer Boeing.In a statement on Wednesday, the SIA accepted the TSI's preliminary findings and said it was fully cooperating with the authorities in the ongoing investigation.
The airline said it is committed to supporting the passengers and crew members on SQ321 with their medical and hospital expenses, as well as any additional help they may require. There were three Indian citizens in the flight.
"We deeply appreciate the invaluable assistance provided by the governments of Singapore and Thailand, as well as our many partners and medical teams in both countries and around the world," SIA said."
On 21 May, flight SQ321, en route from London to Singapore, suddenly experienced severe turbulence over the Irrawaddy Basin in Myanmar during breakfast service. One British passenger died and dozens were injured. Passengers described the incident as horrifying.The preliminary report issued by investigators from the Transport Safety Investigation Bureau (TSIB) is based on preliminary analysis using data stored in the plane's flight data recorder and cockpit voice recorder, The Straits Times newspaper reports.
Investigators found that the plane, a Boeing 777-300ER, was flying at an altitude of 37,000 feet south of Myanmar and near a developing typhoon area in the afternoon when turbulence caused a drop of between +0.44 g and +1.57 g for the 19th. The ups and downs started. sec.
G-forces measure rapid acceleration or deceleration by comparing them to the normal pull of gravity on Earth, which is considered +1g. Therefore, at +1.57 grams the person will feel as if they weigh 1.57 times their body weight.
Passengers on the SQ321 will also start to feel a slight vibration in the plan.The aircraft began to climb and reached an altitude of 37,362 F. It was at this point that the pilots turned on the seat bail sign as the aircraft's autopilot tried to bring the aircraft to its designated cruise altitude.
Eight seconds later, the aircraft experienced a rapid change in G-forces from +1.35 g to -1.5 g within 0.6 seconds. Negative G-forces move in the opposite direction of gravity, giving people a feeling of "lightness" or "floating."
In the case of SQ321, it caused those passengers and crew who had not managed to fasten their seat belts to go airborne, and the g-forces went from -1.5 g back to +1.5 g in four seconds.Due to this the aircraft fell from 37,362 feet to 37,184 feet and all the air passengers fell back down.
"The rapid change in g over a 4.6-second period resulted in a loss of altitude of 178 feet...This sequence of events likely resulted in injuries to the crew and passengers," the report said.
During this time the pilots tried to maintain control of the aircraft to stabilize it, removing the autopilot in the process, before it was reactivated and began descending to divert to Bangkok's Suvarnabhumi Airport. Gave, landing at 4.45 pm.
The TSIB is the investigating authority for air, maritime and rail accidents and incidents in Singapore and is part of the Ministry of Transport. The investigation team included TSIB investigators and representatives from the US National Transportation Safety Board, the Federal Aviation Administration and aircraft manufacturer Boeing.In a statement on Wednesday, the SIA accepted the TSI's preliminary findings and said it was fully cooperating with the authorities in the ongoing investigation.
The airline said it is committed to supporting the passengers and crew members on SQ321 with their medical and hospital expenses, as well as any additional help they may require. There were three Indian citizens in the flight.
"We deeply appreciate the invaluable assistance provided by the governments of Singapore and Thailand, as well as our many partners and medical teams in both countries and around the world," SIA said."
