Feasibility of Battery Backup for Flight Recorders

摘要: On March 9, 1999, the National Transportation Safety issued Recommendations A-99-16 and A-99-17 calling for revisions to FAA Regulations dealing with Cockpit Voice Recorders their installation in commercial aircraft. These recommendations read as follows. (1) Require retrofit after January 1, 2005, of all cockpit voice recorders (CVRs) on airplanes required carry both a CVR flight data recorder (FDR) that (a) meets Technical Standard Order (TSO) C123a, (b) is capable recording last 2 hours audio, (c) fitted an independent power source located digital automatically engages provides 10 minutes operation whenever aircraft ceases, either by normal shutdown or loss bus (A-99-16). (2) manufactured 2003, must (CVR) (DFDR) be equipped two combination (CVR/DFDR) systems. One system should close practicable other far aft practicable. Both systems mandatory parameters covering previous 25 audio including controller–pilot link messages operation. The near provided recorder, bus. powered maximum reliability without jeopardizing service essential emergency loads, whereas second highest loads (A-99-17). A key element these requirement provide which continued following removal main power. This paper will discuss feasibility Flight Data Recorder Recorder. And addition, offer options complying recommended some comparative analysis options.