What is a black box anyway?

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What is a black box anyway?

What is a black box? Hear everything you need to know about the boxes that are key to every plane crash investigation.

02:09 - Source: CNN

AirAsia flight QZ8501 29 videos

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What is a black box anyway?

02:09

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AirAsia QZ8501

Indonesia releases report on Air Asia QZ8501 crash

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Indonesia makes airline safety a bigger priority

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AirAsia Flight 8501 climbed quickly then stalled

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Crew members of Crest Onyx ship prepare to unload parts of AirAsia Flight 8501 from a ship at Kumai port in Pangkalan Bun,Sunday, Jan.11, 2015. A day after the tail of the crashed AirAsia plane was fished out of the Java Sea, the search for the missing black boxes intensified Sunday with more pings heard. (AP Photo/Achmad Ibrahim)

Radar images might provide clues in AirAsia crash

02:13

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AirAsia Group CEO Tony Fernandes speaks during a press conference on search efforts for missing AirAsia flight QZ8501 on December 29, 2014.

AirAsia CEO 'haunted' by Flight QZ8501

02:28

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Black boxes reveal new clues in AirAsia crash

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AirAsia jet's fuselage found

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AirAsia fuselage found

Official: Searchers find AirAsia fuselage

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Officials inspect AirAsia cockpit voice recorder

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Official: AirAsia flight's black boxes recovered

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Official: AirAsia fuselage, voice recorder found

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Official: AirAsia fuselage, voice recorder found

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Official: AirAsia plane exploded after hitting water

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Airasia Flight QZ8501 flight recorders discovered

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Airasia Flight QZ8501 flight recorders discovered

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Airasia Flight QZ8501 data recoder recovered

02:36

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Raising the tail of AirAsia Flight 8501

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Rescuers raise AirAsia flight's tail section

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PANGKALAN BUN, INDONESIA - JANUARY 01: An Indonesian marine patrol looks out over the waters of the Java Sea near Pangkalan Bun, during a search and rescue operation for passengers of AirAsia flight QZ 8501 on January 01, 2015 in Pangkalan Bun, Central Kalimantan, Indonesia. A massive recovery operation has begun following confirmation from Indonesian officials that remains and debris found in waters off Borneo are from the missing AirAsia plane. Flight QZ8501 from Surabaya to Singapore, with 162 people on board, lost contact with air traffic control at 07:24 a.m. local time on December 28.

Pings detected in AirAsia search

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Frustrating hunt for black boxes

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School holds memorial for students lost in plane crash

02:17

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The Indonesia Search and Rescue Agency released photos of the tail section of AirAsia QZ8501 plane found by divers in the Java Sea Wednesday morning.

Crews find tail section of AirAsia Flight 8501

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Was QZ8501 ready for bad weather?

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AirAsia flight wasn't licensed to fly on day of crash

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The race for the black box

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Family lost seven on AirAsia Flight 8501

02:25

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New underwater search vehicle to locate plane wreckage?

03:19

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