In addition to the mandatory functions, Required for: Multiengine turbine-powered airplanes or … FAA-2005-20245). Flight Data Recorder (FDR) Requirements . k. Flight Data Acquisition Unit (FDAU). the data not being recorded during the time when the electrical power was lost. Flight Data Recorders. In 2008, the FAA promulgated several amendments to the flight recorder regulations of Title 14 of the Code of Federal Regulations (73 FR 12542, March 7, 2008; Docket No. Flight Data Acquisition Unit (FDAU). situation, the Federal Aviation Admin-istration (FAA) in 1965 made a speci-fication change which increased the impact requirements to 1,000 Gs and relocated the recorder to the rear of the aircraft. The reasoning for the change was that, following initial impact, the rear of the aircraft would be moving at a slower speed, thus, more recorders A device that acquires aircraft data via a digital data bus and analog inputs and that formats the information for output to the flight data recorder in accordance with requirements of regulatory agencies. Data link recording . There are two different flight recorder devices: the flight data recorder (FDR) preserves the recent history of the flight through the recording of dozens of parameters collected several times per second; the cockpit voice recorder (CVR) preserves the recent history of the sounds in the cockpit, including the conversation of the pilots.The two devices may be combined into a single unit. 135.151(b) No person may operate a multiengine, turbine-powered airplane or rotorcraft having a passenger seating configuration of 20 or more seats unless it is equipped with an approved cockpit voice recorder. Many of the older FDRs were replaced with second-generation magnetic tape recorders that can process incoming data without a Flight Data Acquisition Unit (FDAU). Learn about the requirements for flight data recorders. Annex IV (Part-CAT) to Commission Regulation (EU) No 965/2012 on air operations contains requirements on the recording of data link messages on a flight recorder for aircraft manufactured 20-141B - Airworthiness and Operational Approval of Digital Flight Data Recorder Systems Date Issued August 17, 2010 Responsible Office AIR-130, Aviation Safety - Aircraft Certification Service, Aircraft Engineering Division Description 121.344 — Digital flight data recorders for transport category airplanes. Many U.S. registered multi-engine turbine powered aircraft with 10 or more passenger seats must have a flight data recorder. 2.1.2. See AC 20-186, Airworthiness and Operational Approval of Cockpit Voice Recorder Systems, for FAA rule changes in the late 1980s required the first-generation FDRs to be replaced with digital recorders. Most of these DFDRs can process up to 18 input parameters (signals). Sec. Operational Approval of Digital Flight Data Recorder Systems, for guidance on how to develop and obtain approval for a flight recorder maintenance program when CPDLC messages are recorded in a Flight Data Recorder (FDR) system. J. A device that acquires aircraft data via a digital data bus and analog inputs and formats the data for output to the Flight Data Recorder (FDR) according to regulatory requirements. If a combination unit is installed as a cockpit voice recorder to comply with § 23.1457(e)(2), a combination unit must be used to comply with this flight data recorder requirement.