FDR Interface and Power Supply Subassembly
An integrated unit of power regulators, ARINC 429 interfaces, and connectors joined for flight data recorders to ensure stable operation from aircraft power buses. Falls under 8543.90.35.00 for its specific multi-part design for FDR systems.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If sold as power supply units for general use
Static converters without FDR-specific interfaces are classified under heading 8504.
If printed circuit boards without further assembly
Unpopulated or single-function PCBs go to other 8543.90 categories.
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Import Tips & Compliance
• Provide electromagnetic compatibility (EMC) test reports; ensure BIS export license checks if from controlled countries; label with FDR model compatibility
Related Products under HTS 8543.90.35.00
Flight Data Recorder Processor Assembly
This subassembly integrates the central processing unit, memory modules, and signal conditioning circuits for a flight data recorder (FDR). It falls under HTS 8543.90.35.00 as it consists of two or more parts fastened together specifically for FDR use, enabling real-time data acquisition from aircraft sensors.
FDR Data Acquisition Unit Subassembly
A joined assembly of analog-to-digital converters, multiplexers, and interface boards designed for flight data recorders to capture parameters like altitude and speed. Classified under 8543.90.35.00 due to its multi-part construction tailored for FDR functionality in aircraft black boxes.
Flight Data Recorder Crash-Survivable Memory Module Assembly
This ruggedized subassembly combines solid-state memory chips, protective enclosures, and mounting hardware for FDRs to retain data post-crash. It qualifies for HTS 8543.90.35.00 as a fastened multi-part unit dedicated to flight data recording in high-impact environments.
Flight Data Recorder Sensor Input Board Assembly
Subassembly featuring signal amplifiers, filters, and input terminals fastened together for processing aircraft sensor data in FDRs. Classified in HTS 8543.90.35.00 as it meets the criteria for joined parts dedicated to flight data recorder assemblies.
FDR Synchronization and Timing Module Subassembly
A multi-component assembly of crystal oscillators, GPS sync boards, and timing controllers for precise timestamping in flight data recorders. It is covered by HTS 8543.90.35.00 due to its fastened parts designed exclusively for FDR time synchronization.
Flight Data Recorder Enclosure and Mounting Assembly
Joined crash-proof housing, shock mounts, and retention brackets forming a protective subassembly for FDR internal components. Qualifies under 8543.90.35.00 as parts fastened for flight data recorder integration in aircraft.