The purpose of a black box in an aircraft is to collect and store data that can be used to investigate and understand the circumstances of an accident ¹ ² ³ ⁴ ⁵. There are two types of black boxes:

- *Flight Data Recorder (FDR)*: This device records a range of data from the aircraft's systems, including altitude, speed, heading, and engine performance.
- *Cockpit Voice Recorder (CVR)*: This device records the conversations and sounds in the cockpit, including the voices of the pilots and any other sounds that might be relevant to an investigation.

These devices are designed to be extremely durable and can withstand the extreme conditions of a crash, including high temperatures and impact. The data they collect is crucial in helping investigators piece together what happened in the moments leading up to an accident, and can help identify causes and contributing factors. This information can then be used to improve safety and prevent similar accidents from happening in the future.