Developed and delivered the initial Flight Data Injection System for the CURocketEngineering/Avionics repository, enabling automated replay of flight data for avionics testing. The solution used Python to read flight data from CSV files, format the data into packets, and transmit them over a serial port with precise timing to simulate real-time data streams. Placeholder C++ files were also created to support future enhancements in data injection. This work established a foundational data engineering pipeline for embedded systems, streamlining the process of reproducible test scenarios and accelerating validation cycles for avionics software through automated, end-to-end test data replay capabilities.