FAA AC 20-141 : 2010

CHAPTER 1 - GENERAL INFORMATION
CHAPTER 2 - TYPE CERTIFICATION
CHAPTER 3 - CONTINUED AIRWORTHINESS REQUIREMENTS
APPENDIX 1 - STANDARD DATA FORMAT FOR DIGITAL FLIGHT DATA
             RECORDERS, DATA STREAM FORMAT, AND CORRELATION
             DOCUMENTATION
APPENDIX 2 - REVERSE DFDR DATA CORRELATION PROCEDURES
APPENDIX 3 - DIGITAL FLIGHT DATA RECORDER PARAMETER
             REQUIREMENTS FLOWCHART
APPENDIX 4 - TYPICAL REASONABLENESS AND QUALITY CHECK
             INSTRUCTIONS
APPENDIX 5 - CONSIDERATIONS FOR FILTERED FLIGHT DATA
APPENDIX 6 - DEFINITIONS

Gives guidance on compliance with the applicable regulations for the airworthiness and operational approval for digital flight data recorder systems (DFDRS).