856A1504G01 is a high-reliability aerospace avionics data logger, engineered to AS9100D quality standards and RTCA DO-160G environmental specifications, tailored for Boeing 777X and Airbus A350 XWB wide-body aircraft avionics systems during MRO and in-service operations.

Constructed from a lightweight, EMI-shielded aluminum alloy enclosure with an IP68 hermetic seal, it captures and stores flight control, navigation, and engine performance data at a 500Hz sampling rate, supporting up to 16 terabytes of storage with redundant memory modules for data integrity. The logger operates on 28V DC power, features a low-power standby mode, and functions across -55°C to 125°C. Weighing 0.62 kg and measuring 90mm×70mm×40mm, it complies with FAA Part 25 and EASA CS-25 regulations. It enables post-flight diagnostics, facilitating proactive maintenance and safeguarding long-haul fleet operational reliability.