...
...
Next Story

Air India AI171 crash: What's a black box and why is it important?

The black box of the Air India plane was retrieved a day after its crash in Ahmedabad. What is the black box and how does it help with the investigation?

Updated on: Jun 13, 2025 05:47 PM IST
Advertisement

A Gatwick-bound Air India plane(AI171) with 242 people onboard crashed minutes after takeoff from Ahmedabad's Sardar Vallabhbhai Patel International Airport on Thursday afternoon, with just a lone survivor. Rest of the 241 passengers lost their lives in the crash. Authorities on Friday recovered the flight's black box from the rooftop of the medical college's building the aircraft crashed into.

The black box in the Gatwick bound AI171 aircraft can shed light on vital information behind its crash in Ahmedabad today. (howstuffworks website)
The black box in the Gatwick bound AI171 aircraft can shed light on vital information behind its crash in Ahmedabad today. (howstuffworks website)

Blackbox is a crucial equipment to find out what happened moments before the disaster.

What is a black box?

A black box is a small machine that records information about an aircraft during its flight. This bright orange or yellow rectangular box is crafted to withstand explosions, fire, water pressure, and high-speed crashes. Discovered by Australian scientist David Warren, it is used to discover the cause of a plane crash.

Also Read: Eyewitness on ground recalls Air India plane crash horror: ‘Dead bodies and debris all over’

The black box also comprises two recorders, a cockpit voice recorder for pilot voices and cockpit sounds, and a separate flight data recorder.

How will the Gatwick bound flight's black box help with the crash investigation?

Also Read: ‘Bodies, pieces of plane around me’: What the first survivor of Air India flight crash said

The AI171 Boeing 787 Dreamliner crashed at an altitude of just 625 feet today. The black box can shed light on vital information such as parameters of the engine performance and control surface positions amid others.

What is inside a black box?

A black box comprises four main parts, including,

*an interface designed to fix the device and facilitate recording and playback

* an underwater locator beacon

Also Read: Woman who missed Air India flight by ‘just 10 minutes’ talks about lucky escape: ‘My body is shivering'

* the core housing or 'Crash Survivable Memory Unit' made of stainless steel or titanium, which is designed to withstand a force equivalent to 3,400 times the force of gravity

* The recording chip on a circuit board.

How have black boxes helped with flight crash investigations in the past?

The investigation of the 2020 Kozhikode plane crash of the Air India Express Flight 1344 was heavily dependent on the aircraft's black box recordings, which revealed that it was due to a pilot error.

The 2015 Germanwings crash was another incident which was investigated using the plane's black box recordings.

 
ABOUT THE AUTHOR
Soumili Ray

Soumili Ray is a journalist at the Hindustan Times covering national and international affairs. An alumnus of the Asian College of Journalism(ACJ), Soumili holds keen interest in covering national news emphasizing on politics and crime. Outside work, you will find her engrossed in fiction, true crime series, or even better, dancing to her favorite Kathak taals.

Follow India news real-time updates and the latest news covered on Hindustan Times, featuring today's critical updates on Sonam Wangchuk LIVE and more across India.
Follow India news real-time updates and the latest news covered on Hindustan Times, featuring today's critical updates on Sonam Wangchuk LIVE and more across India.
SHARE THIS ARTICLE ON
Hindustantimes wants to start sending you push notifications. Click allow to subscribe