Download - Intro to Helicopter Flight Data Monitoring
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Presented to: IHST Accident Intervention WORKSHOP
By: Captain Mike Pilgrim FDM Manager CHC Helicopter Services Co-Chair Global HFDM Steering Group
Date: 4th March 2013
INTRODUCTION to HFDM
www.HFDM.org
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March 4th 2013 – Las Vegas
Intro to HFDM - IHST Accident Intervention
Global HFDM Steering Group
• Vision:– Routine and effective utilisation of
HFDM in a just culture environment across the global helicopter industry.
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Intro to HFDM - IHST Accident Intervention
Global HFDM Steering Group
• Mission:– Improve helicopter safety through
provision of focus and leadership on issues concerning the manufacture, provision, support and operation of HFDM systems.
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Intro to HFDM - IHST Accident Intervention
The Definition of
Flight Data Monitoring.
Flight Data Monitoring (FDM) is the systematic, pro-active use of digital flight data from routine operations to improve aviation safety.
Flight Data Monitoring (FDM) programmes assist an operator to identify, quantify, assess and address operational risks.
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Intro to HFDM - IHST Accident Intervention
Routine operations
Accidents
Serious incidents
Minor incidents
FREQUENCY OF EVENT
Sev
erit
y o
f ev
ent
PROACTIVE?
Active Failuresand LatentThreats
REACTIVEWhy HFDM?
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Intro to HFDM - IHST Accident Intervention
FDM OOIIII OO
This is Why
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March 4th 2013 – Las Vegas
Intro to HFDM - IHST Accident Intervention
• What do we mean by Flight?
Flight Data MonitoringData will only be worth anything if the aircraft
is actually doing something.
So ‘flight’
is from power on to power off
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March 4th 2013 – Las Vegas
Intro to HFDM - IHST Accident Intervention
• and Data?
Flight Data MonitoringAnything about the state of the aircraft that can
be recorded:
Airspeed
Rate of climb/descent
Flight control positions
Engines / rotors / temps & pressures
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March 4th 2013 – Las Vegas
Intro to HFDM - IHST Accident Intervention
• What about monitoring?
Flight Data MonitoringCareful analysis of groups of data for indications of
anything undesirable.
So what does it look like?
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Flight Data – Take-Off
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Flight Data – Altitude
Altitude
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Pitch Attitude
Flight Data – Pitch
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Intro to HFDM - IHST Accident Intervention
30 SECS
-1000fpm
700ft 150ft
Rate of Descent
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Intro to HFDM - IHST Accident Intervention
Solid State Quick Access Recorder
How do we get the data?
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Aircraft without FDRs
Stand alone unitsPowerEarth
Geospatial Digital (Optional)Video (Optional)Engine Data
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Intro to HFDM - IHST Accident Intervention
Now I have the knowledge
Start compiling your trend information
Its not about individual incidents
Aggregate the event types
Produce readable reports
Involve your staff
Don’t talk about individual events in terms of the crews who flew them
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Intro to HFDM - IHST Accident Intervention
Demonstrable safety:
Don’t just think you’re safe,
KNOW YOU’RE SAFE
Flight Data Monitoring
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Example
Overtorque on take-off
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Plotting Engine Tq against IAS
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Tq vs IAS graph
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Intro to HFDM - IHST Accident Intervention
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Example
Potential Dynamic Roll-Over
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Example 1
Close to Roll-over
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Rolling Moment
CF
CFRolling moment due to the tail rotor thrust with left pedal applied.
Rolling moment with left cyclic applied due to inclined main rotor and offset flapping hinges.
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March 4th 2013 – Las Vegas
Intro to HFDM - IHST Accident Intervention
Rolling moment due to the tail rotor thrust with RIGHT pedal applied.
Rolling moment with left cyclic applied due to inclined main rotor and offset flapping hinges.
CF
CF
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Rolled over aircraft
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High Risk Area
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Google Earth Jan ‘07
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FDM NewsletterFDM NewsletterFeb 2007
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|Google Earth Feb ‘07