Honeywell EGPWS manual Turbofan Engine Digital Control System

Page 32

Turbofan Engine Digital Control System

•Honeywell Turbofan Engines utilize Digital Control with Engine Condition Trend Monitoring (ECTM)

-Two generations of controls

Generation One, Digital Electronic Engine Controls (DEEC)

•TFE731-2/3/4/5 (New Production and Retrofit of older units)

•TFE731-20/40/50/60 (All from Production)

Generation Two, Full Authority Digital Electronic Control (FADEC)

•HTF7000 series

•ECTM data is divided into three broad catagories.

-Engine Statistics

-Engine Maintenance/Troubleshooting

-Operational Information

•In addition, both generations have Incident Recorders incorporated.

32	File Number

Image 32

Contents Honeywell Electronics Enhanced Ground Proximity Warning System EgpwsEgpws Flight History Data can Egpws Flight History DataEgpws Flight History Data was designed to Egpws Flight History Data Limitations Egpws Flight History DataEgpws Units Class a Taws MK VI & MK Viii & MKKMH820 & KMH920 Egpws Units Class B TawsKGP560 & KGP860 & MK Egpws Flight History Data Warning/Caution Egpws Flight History Parameters GPS VfomData that is invalid is noted as such Does not record what is not inputData can be superimposed over maps/chart KML Flight History Retrieval Process Egpws issued Bank Angle alert Hawker 800 crash at Owatonna MNNtsb AAR-11/01, 31 July 2008, 8 Fatal Flight History download performed at Honeywell2 Flight History data chips broken, data irretrievable Cessna 560 crash at Pueblo, CONtsb AAR-07/02, 16 February 2005 8 fatal Non-Volatile Memory NVM An Increasing Aide in Investigations Agenda Maintenance/Tracking Trouble ShootingIntended Uses of NVM in Electronics Trend analysisVarious Levels of Data Available Low Fidelity DataMedium Fidelity Data High Fidelity DataExample of Low Fidelity Data Example of Medium Fidelity Data Example of High Fidelity Data 1Hz Rate Precision as Witnessed during Taxi Types of Equipment and Data Fidelity Ase of DataTwin Otter Agusta A109E Aircraft with Primus Epic Medium and Low Fidelity Examples of Aircraft With Sky Connect EMS Helo Fleet Fire and RescuePreservation & Recovery Non-Volatile Memory NVM Evidence General Precautions If the component is wet, keep it wetIf an accident has occurred in fresh or salt water… General Packing and Shipping Guidelines Closing… Honeywell Digital Engine Controls Incident Recorder Applicability to Accident InvestigationAgenda Turbofan Engine Digital Control System Ectm data is divided into three broad catagoriesExamples of Data available via Ectm Engine StatisticsTFE731 Deec Generation One Gen Design Features Gen 1 Incident Recorder Design ParametersHTF7000 Family Generation Two Gen Gen 2 Incident Recorder Design Parameters Data is collected as discrete valuesTFE731 Applications Gen 1 Civil Deec Retrofit Production TFE731 Applications Gen 1 Civil Deec Production Bombardier Challenger CL Gulfstream Embraer Legacy 450 Use of Incident Recorder Data in Accident Investigation These are not Flight Data Recorders butGeneration 1 Deec Plotted Data Generation 1 Deec Plotted Data Generation 2 Fadec Plotted Data Units and return Post Accident PrecautionsIf the Deec or Fadec appears intact 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?