the principles of flight data monitoring · flight data monitoring isn’t very good...at giving...
TRANSCRIPT
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The Principles
of
Flight Data Monitoring
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Tuesday 7th November 2017
Welcome
Fire exits
Agenda
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Tuesday 7th November 2017
09:00 Introduction
09:15 FDM Principles & Process
10:30 Coffee Break
11:00 Fundamentals of Safety Management
12:00 Buffet Lunch
13:00 Flight Data Recording and Data Transfer
14:00 Coffee Break
14:30 Introduction to Flight Data Connect
15:30 Data Sharing
16:00 Close
Questions ?
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An Introduction to
Flight Data Monitoring
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Flight Data Monitoring
isn’t very good
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Flight Data Monitoring
isn’t very good
...at giving the full picture
...but excellent at giving detail
in a small area at a time
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Flight Data Hardware
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Lots of Acronyms !
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Quick Access Recorder
Flight Data Recorder
Data Acquisition Unit
Quick Access Recorder
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Recorded parameters
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47 02 77 07 03 00 2B 0E DF 0F 02 0C A5 0F 78 00 55 04 D3 01 D8 0F EA 03 A4 47 02 77 07 03 00 2B 0E DF 0F 02 0C A5 0F 78 00 55 04 D3 01 D8 0F EA 03 A4 0F EE 0F FD 0F 00 00 00 00 77 07 96 0F 64 08 06 01 3C 0C F2 0E 08 08 00 00 00 00 01 00 AC 00 4C 08 01 08 2B
Heading
Airspeed
Engine N1
A4 D3
Conversion
070 deg
205 kts
32 %
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Recorded Parameters
Logical Frame Layout
Defines where the parameters are stored in the data stream
+ Defines how to convert the data to engineering units
Data Frame
A template applied to the data to provide an input standard for analysis
Analysis
Data can now be checked
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Altitude
Pressure altitude 1013 mB / hPa A
ltitu
de
(ft
)
Time
Altitude STD: ft
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Altitude Radio & Altitude AAL
0
500
1000
1500
2000
2500
3000
3500
4000
4500
0 30 60 90 120 150
Altitude Radio typically negative on ground
Altitude AAL with respect to local airfield (not actual QFE)
Altitu
de
(ft
)
Time
Altitude AAL: ft
Altitude Radio: ft
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Accelerations Normal G, Lateral G, Longitudinal G
Time
Acce
lera
tion (
g)
Altitu
de
(ft
)
Normal Acceleration: g
Lateral Acceleration: g
Longitudinal Acceleration: g
Altitude STD: ft
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Roll and Heading
Time
Roll: deg
Heading: deg
Hea
din
g (
de
g)
Roll
(de
g)
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Heading
0
50
100
150
200
250
300
350
400
0 100 200 300 400 500 600 700 800 900
0
2000
4000
6000
8000
10000
12000
0 100 200 300 400 500 600 700 800 900
Altitude STD: ft
Heading: deg
Hea
din
g (
de
g)
Altitu
de
(ft
)
Time
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18.5
18.75
19
19.25
19.5
19.75
20
20.25
Sample Rate & Quantisation Data is sampled periodically
Measurement steps may be evident
Te
mp
era
ture
(d
egC
)
Air Temperature
Time
Actual
Temperature
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Data Cleansing FDS
Patented Techniques
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Flight Data Process
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The data card is
removed from the
aircraft…
…and inserted into a
Data Transfer Unit
where the raw flight
data is securely
transmitted to FDS A few minutes
2 hours of flying
~ 1 MB
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The data is
processed.
Flights, graphs,
weather,
in-browser
visualisation and
other information is
available in
POLARIS
Upon receipt, a
backup is created
and archived.
Within 1
hour
trending at 4
minutes
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Flight Data Analysts
check the event data
for validity and post
comments as
necessary. Within 1
working day
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The Achieved Flight File
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Sources of information
Recorded Flight Data
Quick Access Recorder
Achieved Flight Record
Anywhere from 8
to 2000+ parameters
A/c registration
Date and Time
Location
Runway
Weight
Flight Number
Pilots
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Flight Coverage Display
G-ABCA
G-ABCB
G-ABCC
G-ABCD
G-ABCE
G-ABCF
G-ABCG
G-ABCH
G-ABCI
G-ABCJ
Flight Data Summary: 2016-01-01 - 2016-02-29
20
17
-01
-01
20
17
-01
-02
20
17
-01
-03
20
17
-01
-04
20
17
-01
-05
20
17
-01
-06
20
17
-01
-07
20
17
-01
-08
20
17
-01
-09
20
17
-01
-10
20
17
-01
-11
20
17
-01
-12
20
17
-01
-13
20
17
-01
-14
20
17
-01
-15
20
17
-01
-16
20
17
-01
-17
20
17
-01
-18
20
17
-01
-19
20
17
-01
-20
20
17
-01
-21
20
17
-01
-22
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Events
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What is an Event ?
Instances where the aircraft or the aircraft
systems have operated outside of limits.
Those limits could be set either by your company or
the aircraft manufacturer.
Example technique
Initiate the flare as the aircraft is
descending through 20 feet.
What we can measure
Maximum and minimum
pitch from 20ft to
touchdown
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Key Point Values
Measured for every aircraft, for every flight
Over 1,000 different KPVs available
0
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Key Point Values
Pitch 20ft to Touchdown Max Key Point Value Statistics:
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Key Time Instances
Determine the touchdown
point Measure the
maximum and minimum pitch
Pitch at Touchdown
KTI
KPV
Event
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Phases and KTIs
Airspeed
Altitu
de
Ho
ver
Hover Taxi
Ground Taxi
• Transition to forward flight
• Transition from forward flight
• Standard runway approach
• ARDA offshore approach
• etc…
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Sloping ground or takeoff?
Landing Gear Altitude (ft) Pitch (deg)
Collective (%)
Ground 0 3.5 40
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What is an Event ?
Defined in your Analysis Specification
To identify What happened, and When
The operator’s has the responsibility to find out Why
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Types of Event
Fuel
Maintenance
Safety Pilot actions
Airframe or system limit
Fuel Efficient Flying
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Severity of Event
Validated by an analyst Auto validated
All events are available on the website
Less severe Most severe
Level 1 Level 2 Level 3
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Safety Events
10
0
Flap Handle Flap Surface
Event begins when the flap
handle is moved
Event ends when the flap handle
is moved
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Maintenance Events
10
0
Flap
including
Transition
Flap Surface
Event begins when the flap (or slat)
surface starts to extend Event ends when the flap (or slat)
surface has retracted fully
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Analysis Specification
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Event Conditions
Non standard approaches
Airport or runway specific
Aircraft specific
(engine / mod state )
Lukla, Nepal Bardufoss, Norway
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Patches
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What does an analyst do ?
Examine the
flight data
Check the
quality of the
data
Check that all
the conditions
for each
triggered event
have been met
Customer Contact
Inform the
customer of any
aircraft problems
Be available to
answer any
questions from
the customer
Validate Events
Validate events
according to
customer wishes
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Questions
Coffee Break Question….
What new Key Point Values would you create for your flights?