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Aircraft Incident Investigation

About FDA

Basic Event Analysis Using Flight Data: A Comprehensive Training Course

Course Description:

Are you seeking courses that provide you with the knowledge and confidence to perform in-depth analysis of events or incidents using downloaded FDR/QAR data? Whether you're an investigator looking to gain confident knowledge on how FDR data parameters can support your investigations, this course is designed for you. By enrolling in this course, you'll gain access to actual flight data and in-depth knowledge about the analysis of events using real FDR data. Say goodbye to uncertainty and elevate your skills to become a skilled and proficient expert in analyzing FDR data parameters for the purpose of supporting investigations and reporting.

Requirements:

1. Basic Math skills
2. Fundamental knowledge of aircraft systems
3. Basic understanding of civil aviation regulations

What Will You Gain From This Course?:

By enrolling in this course, you will acquire the following knowledge and skills:
1. Utilize recorded parameters to analyze events and incidents with confidence.
2. Analyze graphical representations of flight data to extract valuable insights.
3. Analyze tabular data effectively to uncover critical information.

Event Analysis Using FDR Data

Begin by gaining a comprehensive understanding of the process and importance of event analysis using FDR data.

Graphical Plot & Tabular Data

Explore the visual and tabular representations of flight data, gaining the skills to analyze and interpret these data formats.

Flight Visualization (e.g., Google Earth)

Learn how to leverage flight visualization tools, including Google Earth, to enhance your event analysis capabilities.

Final Exam

Test your knowledge and skills in event analysis using FDR data through a comprehensive final exam. Successful completion of the exam will validate your expertise in this specialized field and earn you a certificate of achievement.

About Course FDA

What Will You Gain From This Course?

By enrolling in this course, you will acquire the following knowledge and skills:

Utilize recorded parameters to analyze events and incidents with confidence.

Analyze graphical representations of flight data to extract valuable insights.

Analyze tabular data effectively to uncover critical information.
Extract key information from flight data to support event analysis.

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How do I modify my FDR to record more than 25 hours?

You can modify the program pins at the rear of the SSFDR to uptick your recording hours. For example, if you have a Honeywell PN 980-4700-XXX installed, you can alter the ‘ground/open’ discrete wiring at pin 17 & 18 of the SSFDR mating connector to increase your recording capacity.

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How can determine the amount of hours recorded by my FDR?

The amount of recorded hours is dependent on a combination of your FDAU wps output and FDR maximum allowable recording speed. If there is a one to one relationship between the two units, i.e. – 64 wps FDAU with a 64 wps FDR, you will record the last 25 hours of flight data. This also applies to the case when the FDAU and FDR are both 128wps, 256wps, or even higher. If there is a mismatch between the FDAU and FDR speed, a small and simple calculation can be made to determine actual flight hour recording capacity. See the figure below for the various possibilities:

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How can I determine the speed of my Flight Data Recording system in words per second (wps)?

There are basically 4 ways to determine your speed, with the 4th being a bit more involved. First, the speed should be listed or documented in chapter 31 of your aircraft Maintenance Manual and/or Wiring Diagram Manual. However there are times when for some reason, the required information cannot be found. If this is the case, as a second method, you may reference the CMM or technical specification for your Flight Data Acquisition Unit (FDAU). If you are still unable to find this information, you may contact the aircraft manufacturer for the wps or review your previous FDR download analysis reports. Please keep in mind, the OEM will only know the as-delivered configuration of your aircraft. If there were modifications to your aircraft post-delivery – manufacturer unaware of the changes – youll need to contact us for an analysis of your raw data. Using our software we can determine the wps of your system.

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With regard to Flight Data Recorder Systems, what exactly does wps imply? I have noticed this abbreviation in our FDR documentation and in communications with the manufacturer several times:

WPS = words per second. A word (12-bits in length) contains binary data which represents a specific parameter value. Please see figure 1 below. Your FDR records in frames (4 second intervals) and each frame contains 4 sub frames (one sub frame = 1 second). With each second that goes by a specific quantity of words are recorded into memory. If you operate a 64 wps FDR system, you will record 64 12-bit words in one second. The higher the word capacity the more information you can record.

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What is a Dataframe Layout (DFL)?

A DFL, also known by the name Logical Frame Layout (LFL), Dataframe Interface Control & Requirements Document, and many other names depending on the manufacturer, is a document which specifies the FDR, QAR, or DAR Parameter Word (location), Recording Speed, Sampling Rate, Bits, and Conversion formulae for your recording system.  

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