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An Air Flight AI-171, took off from Sardar Vallabhbhai Patel International Airport in Ahmedabad, Gujarat, but crashed into BJ Medical College moments after takeoff on Thursday afternoon, resulting in 241 fatalities among the 242 people on board.
Ramesh Vishwas Kumar was the sole survivor of the crash. Vijay Rupani, the former Chief Minister of Gujarat, was among the 241 passengers who tragically lost their lives in the accident
After the crash the investigation agencies actively looked for Black Box which were found on the rooftop on the crash site.
What is Black Box ?
Flight data recorder, commonly known as the ‘Black Box’, are two critical devices installed on an aircraft. It has two parts Flight Data Recorder (FDR) and Cockpit Voice Recorder (CVR).
FDR : This device records important flight parameters like speed, altitude, engine performance, heading, and flight control movements.
CDR : This records audio from the cockpit, including conversations between pilots, alarms, and ambient sounds.
Black Box has bright orange color instead of black so that it can easily be found in case of an accident. It can send signals for 30 days even when submerged in water
If a recorder is found in water, it is kept in deionized water to protect it from rust until it reaches the lab.
Black Box was invented by Australian scientist David Ronald de Mey Warren. He developed the device in 1954 while working as a jet fuel expert.
Examination process
When flight recorders reach the lab, experts first check their condition to see if the data can be extracted. If the recorder is intact, the data is usually downloaded easily, but if it is damaged, more effort is required.
The most important part is the Crash Survivable Memory Unit (CSMU), which contains important flight data. If necessary, experts shift the data chips to a special device called the “Golden Chassis,” which is designed to store and download data safely.
The flight data recorder contains hundreds of parameters that are examined to understand what happened before the accident.
CVR: the most critical part of the investigation
Its main purpose is to find out whether the accident was recorded or not and what information can be obtained from it. It is worth noting that the recording of the CVR is legally protected.
The flight data recorder contains hundreds of information related to the aircraft’s systems, which helps the investigators to understand what happened before the accident.
At the same time, the cockpit voice recorder (CVR) records the pilot’s conversation and other important sounds.
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