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EGPWS
manual
Preservation & Recovery Non-Volatile Memory NVM Evidence
Models:
EGPWS
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Troubleshooting
Egpws issued Bank Angle alert
General Precautions
Design Features
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Preservation & Recovery of
Non-Volatile
Memory (NVM) Evidence
25
File Number
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Contents
Enhanced Ground Proximity Warning System Egpws
Honeywell Electronics
Egpws Flight History Data was designed to
Egpws Flight History Data
Egpws Flight History Data can
Egpws Flight History Data
Egpws Flight History Data Limitations
MK VI & MK Viii & MK
Egpws Units Class a Taws
KGP560 & KGP860 & MK
Egpws Units Class B Taws
KMH820 & KMH920
Egpws Flight History Data Warning/Caution
GPS Vfom
Egpws Flight History Parameters
Data can be superimposed over maps/chart KML
Does not record what is not input
Data that is invalid is noted as such
Flight History Retrieval Process
Hawker 800 crash at Owatonna MN
Egpws issued Bank Angle alert
Ntsb AAR-11/01, 31 July 2008, 8 Fatal
Flight History download performed at Honeywell
Ntsb AAR-07/02, 16 February 2005 8 fatal
Cessna 560 crash at Pueblo, CO
2 Flight History data chips broken, data irretrievable
Non-Volatile Memory NVM An Increasing Aide in Investigations
Agenda
Trouble Shooting
Maintenance/Tracking
Intended Uses of NVM in Electronics
Trend analysis
Low Fidelity Data
Various Levels of Data Available
Medium Fidelity Data
High Fidelity Data
Example of Low Fidelity Data
Example of Medium Fidelity Data
Example of High Fidelity Data 1Hz Rate
Precision as Witnessed during Taxi
Ase of Data
Types of Equipment and Data Fidelity
Twin Otter
Agusta A109E
Aircraft with Primus Epic Medium and Low Fidelity
Fire and Rescue
Examples of Aircraft With Sky Connect EMS Helo Fleet
Preservation & Recovery Non-Volatile Memory NVM Evidence
If the component is wet, keep it wet
General Precautions
If an accident has occurred in fresh or salt water…
General Packing and Shipping Guidelines
Closing…
Applicability to Accident Investigation
Honeywell Digital Engine Controls Incident Recorder
Agenda
Ectm data is divided into three broad catagories
Turbofan Engine Digital Control System
Engine Statistics
Examples of Data available via Ectm
TFE731 Deec Generation One Gen
Gen 1 Incident Recorder Design Parameters
Design Features
HTF7000 Family Generation Two Gen
Data is collected as discrete values
Gen 2 Incident Recorder Design Parameters
TFE731 Applications Gen 1 Civil Deec Retrofit
Production
TFE731 Applications Gen 1 Civil Deec Production
Bombardier Challenger CL Gulfstream Embraer Legacy 450
These are not Flight Data Recorders but
Use of Incident Recorder Data in Accident Investigation
Generation 1 Deec Plotted Data
Generation 1 Deec Plotted Data
Generation 2 Fadec Plotted Data
If the Deec or Fadec appears intact
Post Accident Precautions
Units and return
Attempt to identify the types of electronics that the t th
Honeywell Support for Downloading and Analysis
Example of Challenging Download
Accident Contact Information
Questions?
