Cockpit voice recorder (CVR)
Definition
An aircraft recording device that captures audio from the cockpit area microphone and crew headsets over the last 2 hours (minimum) of flight, providing context for crew decisions and alerts leading to an accident.
Related terms
- 49 CFR Part 563
- The NHTSA federal regulation requiring standardised EDR data elements, minimum accuracy specifications, and data durability requirements for passenger vehicles and light trucks...
- CDR tool
- The Bosch Crash Data Retrieval tool: the industry-standard hardware-software system used to interface with automotive EDR modules via the OBD diagnostic port...
- Delta-V
- The change in vehicle velocity during the crash event, recorded by the EDR as a time-history. It is the integral of the...
- Event data recorder (EDR)
- An onboard module that records pre-crash vehicle kinematics (speed, throttle, brake, steering) in the seconds before airbag deployment; governed by SAE J1698...
- Flight data recorder (FDR)
- A mandatory aircraft recording device under ICAO Annex 6 that captures 25 or more flight parameters over at least the last 25...
Explained in
- Event Data Recorders and Black-Box AnalysisAn aircraft recording device that captures audio from the cockpit area microphone and crew headsets over the last 2 hours (minimum) of flight, providing contex...