Final answer:
All commuter aircraft are required to have a functioning Flight Data Recorder (FDR), which records various parameters related to the operation of the aircraft. The FDR is crucial for accident investigation and safety analysis.
Step-by-step explanation:
In the field of aviation, all commuter aircraft are required to have a functioning Flight Data Recorder (FDR). A Flight Data Recorder is a device that records various parameters related to the operation of an aircraft, such as altitude, airspeed, heading, and control inputs. It is commonly referred to as the 'black box' and is crucial for accident investigation and safety analysis.
For example, aircraft like the Bombardier Dash 8 and ATR 72, which are frequently used as commuter aircraft, are equipped with functioning FDRs. These FDRs provide valuable data for understanding the causes of accidents and improving aviation safety.