Richard Upchurch began his Brooklyn-based sound recorder business by making a handcrafted audio device for his nephew. A few more were requested by his teachers and then he started selling them online ...

Flight data recorders and cockpit voice recorders are nearly indestructible. The recorders are widely referred to as the "black box" and are crucial to aviation accident investigations. Future ...

Investigators seeking answers about what caused an Alaska Airlines plane’s near-catastrophic midflight blowout on Jan. 5 are working without a key piece of evidence: audio from the flight’s black box ...