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Flight Data Monitoring Analysis Specification

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Page 1: Flight Data Monitoring Analysis SpecificationOnly assessed down to 50ft RA, the condition at 50ft RA ... IF in aircraft family A319, A320, A321 EPR is stable above 1.02 ELSE EPR is

Flight Data Monitoring

Analysis Specification

Page 2: Flight Data Monitoring Analysis SpecificationOnly assessed down to 50ft RA, the condition at 50ft RA ... IF in aircraft family A319, A320, A321 EPR is stable above 1.02 ELSE EPR is

Behind the

Specifications

Page 3: Flight Data Monitoring Analysis SpecificationOnly assessed down to 50ft RA, the condition at 50ft RA ... IF in aircraft family A319, A320, A321 EPR is stable above 1.02 ELSE EPR is

Templates

Fleets

Events

Thresholds

Patches

Page 4: Flight Data Monitoring Analysis SpecificationOnly assessed down to 50ft RA, the condition at 50ft RA ... IF in aircraft family A319, A320, A321 EPR is stable above 1.02 ELSE EPR is

Understanding KTIs

Page 5: Flight Data Monitoring Analysis SpecificationOnly assessed down to 50ft RA, the condition at 50ft RA ... IF in aircraft family A319, A320, A321 EPR is stable above 1.02 ELSE EPR is

Understanding KTIs

Page 6: Flight Data Monitoring Analysis SpecificationOnly assessed down to 50ft RA, the condition at 50ft RA ... IF in aircraft family A319, A320, A321 EPR is stable above 1.02 ELSE EPR is

Understanding KPVs

Page 7: Flight Data Monitoring Analysis SpecificationOnly assessed down to 50ft RA, the condition at 50ft RA ... IF in aircraft family A319, A320, A321 EPR is stable above 1.02 ELSE EPR is

Your Specification

Page 8: Flight Data Monitoring Analysis SpecificationOnly assessed down to 50ft RA, the condition at 50ft RA ... IF in aircraft family A319, A320, A321 EPR is stable above 1.02 ELSE EPR is

Your own Specification

Recommendations

Add, Remove, Amend

Designated analyst

Page 9: Flight Data Monitoring Analysis SpecificationOnly assessed down to 50ft RA, the condition at 50ft RA ... IF in aircraft family A319, A320, A321 EPR is stable above 1.02 ELSE EPR is

Method 1

Trend up to the limit

Number of Level 3

events triggering

Page 10: Flight Data Monitoring Analysis SpecificationOnly assessed down to 50ft RA, the condition at 50ft RA ... IF in aircraft family A319, A320, A321 EPR is stable above 1.02 ELSE EPR is

Method 2

Level of exceedance

No trending

Page 11: Flight Data Monitoring Analysis SpecificationOnly assessed down to 50ft RA, the condition at 50ft RA ... IF in aircraft family A319, A320, A321 EPR is stable above 1.02 ELSE EPR is

Method 3

My recommendation

Trending, SOPs,

Exceedance

Page 12: Flight Data Monitoring Analysis SpecificationOnly assessed down to 50ft RA, the condition at 50ft RA ... IF in aircraft family A319, A320, A321 EPR is stable above 1.02 ELSE EPR is
Page 13: Flight Data Monitoring Analysis SpecificationOnly assessed down to 50ft RA, the condition at 50ft RA ... IF in aircraft family A319, A320, A321 EPR is stable above 1.02 ELSE EPR is

Maintenance

Page 14: Flight Data Monitoring Analysis SpecificationOnly assessed down to 50ft RA, the condition at 50ft RA ... IF in aircraft family A319, A320, A321 EPR is stable above 1.02 ELSE EPR is
Page 15: Flight Data Monitoring Analysis SpecificationOnly assessed down to 50ft RA, the condition at 50ft RA ... IF in aircraft family A319, A320, A321 EPR is stable above 1.02 ELSE EPR is

Histograms

Page 16: Flight Data Monitoring Analysis SpecificationOnly assessed down to 50ft RA, the condition at 50ft RA ... IF in aircraft family A319, A320, A321 EPR is stable above 1.02 ELSE EPR is

Approval and Release

Permissions

Designated analyst

Senior Analyst

Page 17: Flight Data Monitoring Analysis SpecificationOnly assessed down to 50ft RA, the condition at 50ft RA ... IF in aircraft family A319, A320, A321 EPR is stable above 1.02 ELSE EPR is

Scenario: New Event

Page 18: Flight Data Monitoring Analysis SpecificationOnly assessed down to 50ft RA, the condition at 50ft RA ... IF in aircraft family A319, A320, A321 EPR is stable above 1.02 ELSE EPR is

Scenario: New Event

Identify a need

FDS Safety Manager

Prioritise

Development

Testing

Page 19: Flight Data Monitoring Analysis SpecificationOnly assessed down to 50ft RA, the condition at 50ft RA ... IF in aircraft family A319, A320, A321 EPR is stable above 1.02 ELSE EPR is

Scenario: New Event

Tailstrike risk

Derotation Slow

Pitch Rate High Touchdown to 60kts

Pitch High Touchdown to 60kts

Notification, Monthly Reports, Designated Analyst

Page 20: Flight Data Monitoring Analysis SpecificationOnly assessed down to 50ft RA, the condition at 50ft RA ... IF in aircraft family A319, A320, A321 EPR is stable above 1.02 ELSE EPR is

Scenario: New Event

Draft specification

Template Inheritance

Analyst recommendations

Page 21: Flight Data Monitoring Analysis SpecificationOnly assessed down to 50ft RA, the condition at 50ft RA ... IF in aircraft family A319, A320, A321 EPR is stable above 1.02 ELSE EPR is

Scenario: New Event

Page 22: Flight Data Monitoring Analysis SpecificationOnly assessed down to 50ft RA, the condition at 50ft RA ... IF in aircraft family A319, A320, A321 EPR is stable above 1.02 ELSE EPR is

Operational Invalidity

Page 23: Flight Data Monitoring Analysis SpecificationOnly assessed down to 50ft RA, the condition at 50ft RA ... IF in aircraft family A319, A320, A321 EPR is stable above 1.02 ELSE EPR is

Patches

Why so many events?

Is my operation very bad?

Why JFK?

Page 24: Flight Data Monitoring Analysis SpecificationOnly assessed down to 50ft RA, the condition at 50ft RA ... IF in aircraft family A319, A320, A321 EPR is stable above 1.02 ELSE EPR is
Page 25: Flight Data Monitoring Analysis SpecificationOnly assessed down to 50ft RA, the condition at 50ft RA ... IF in aircraft family A319, A320, A321 EPR is stable above 1.02 ELSE EPR is
Page 26: Flight Data Monitoring Analysis SpecificationOnly assessed down to 50ft RA, the condition at 50ft RA ... IF in aircraft family A319, A320, A321 EPR is stable above 1.02 ELSE EPR is

Taxi Events

Page 27: Flight Data Monitoring Analysis SpecificationOnly assessed down to 50ft RA, the condition at 50ft RA ... IF in aircraft family A319, A320, A321 EPR is stable above 1.02 ELSE EPR is

Taxi Events

Patch?

Designated analyst

Page 28: Flight Data Monitoring Analysis SpecificationOnly assessed down to 50ft RA, the condition at 50ft RA ... IF in aircraft family A319, A320, A321 EPR is stable above 1.02 ELSE EPR is

Taxi Events

Page 29: Flight Data Monitoring Analysis SpecificationOnly assessed down to 50ft RA, the condition at 50ft RA ... IF in aircraft family A319, A320, A321 EPR is stable above 1.02 ELSE EPR is

Understanding Your

Events

Page 30: Flight Data Monitoring Analysis SpecificationOnly assessed down to 50ft RA, the condition at 50ft RA ... IF in aircraft family A319, A320, A321 EPR is stable above 1.02 ELSE EPR is

Understanding your events: Unstable Approach

https://github.com/FlightDataServices/FlightDataAnalyzer

Page 31: Flight Data Monitoring Analysis SpecificationOnly assessed down to 50ft RA, the condition at 50ft RA ... IF in aircraft family A319, A320, A321 EPR is stable above 1.02 ELSE EPR is

Understanding your events: Unstable Approach

https://github.com/FlightDataServices/FlightDataAnalyzer

1. Gear is down

2. Landing flap is set

3. Track is aligned to the runway (within 12 degrees, or 30 degrees if offset

approach)

4. Airspeed:

Airspeed minus selected approach speed within -5 to +15 knots (for 3 secs)

OR Vapp within -5 to +10 knots (for 3 secs)

OR Vref within -5 to +35 knots (for 3 secs)

5. Glideslope deviation within 1 dot

6. Localiser deviation within 1 dot

7. Vertical velocity between -1100 and -200 fpm

8. Engine thrust greater than 40% N1 or 35% N1 (A319, B787) or 1.09 EPR (for 10 secs)

or 1.02 EPR (A319, A320, A321)

9. If all the above conditions are met, the approach is “Stable”

Page 32: Flight Data Monitoring Analysis SpecificationOnly assessed down to 50ft RA, the condition at 50ft RA ... IF in aircraft family A319, A320, A321 EPR is stable above 1.02 ELSE EPR is

Understanding your events: Unstable Approach

https://github.com/FlightDataServices/FlightDataAnalyzer

1- Is the Gear down?

If yes move to step 2

2- Is the landing flap set?

If yes move to step 3

3- Is the track aligned with runway heading?

(Within 12 degrees, or within 30 degrees if localiser is

marked as “offset” in the Airport Database)

If yes move to step 4

4- Is airspeed stable?

(Only assessed down to 50ft RA, the condition at 50ft RA

is assumed to continue to landing)

Airspeed minus Airspeed Selected (-5kts to +15kts) for 3

seconds

-OR Airspeed minus VApp (-5kts to +10kts) for 3 seconds

-OR Airspeed minus Vref (-5kts to +35kts) for 3 seconds

-OR Airspeed minus VLS (-5kts to +35kts) for 3 seconds

If yes move to step 5

5- Is the aircraft within 1 dot of the glideslope?

(Only assessed down to 200ft AAL, the condition at 200ft

AAL is assumed to continue to landing)

If yes move to step 6

6- Is the aircraft within 1 dot of the localiser?

(Only assessed down to 200ft AAL, the condition at 200ft

AAL is assumed to continue to landing)

If yes move to step 7

7-Is the vertical velocity stable?

(Between -200fpm and -1100fpm) (Only assessed down to

50ft RA, the condition at 50ft RA is assumed to continue to

landing)

If yes move to step 8

8- Is the engine thrust stable?

(Only assessed down to 50ft RA, the condition at 50ft RA

is assumed to continue to landing)

IF engine records EPR:

IF in aircraft family A319, A320, A321 EPR is stable above

1.02

ELSE EPR is stable above 1.09

(if no EPR) ELSE

IF in aircraft family A319, B787 N1 is stable above 35%

ELSE N1 is stable above 40%

If yes, move to step 9

9- Are all criteria met?

If "Yes" define approach as "STABLE"

Page 33: Flight Data Monitoring Analysis SpecificationOnly assessed down to 50ft RA, the condition at 50ft RA ... IF in aircraft family A319, A320, A321 EPR is stable above 1.02 ELSE EPR is

Airspeed 50ft RA

Glideslope 200ft AAL

Localiser 200ft AAL

Vertical velocity 50ft RA

Engine thrust 50ft RA

https://github.com/FlightDataServices/FlightDataAnalyzer

Understanding your events: Unstable Approach

Page 34: Flight Data Monitoring Analysis SpecificationOnly assessed down to 50ft RA, the condition at 50ft RA ... IF in aircraft family A319, A320, A321 EPR is stable above 1.02 ELSE EPR is

Understanding your events: Unstable Approach

https://github.com/FlightDataServices/FlightDataAnalyzer

Interactive Statistics- Eventful Flights

Page 35: Flight Data Monitoring Analysis SpecificationOnly assessed down to 50ft RA, the condition at 50ft RA ... IF in aircraft family A319, A320, A321 EPR is stable above 1.02 ELSE EPR is

Understanding your events: Derotation Slow

https://github.com/FlightDataServices/FlightDataAnalyzer

Page 36: Flight Data Monitoring Analysis SpecificationOnly assessed down to 50ft RA, the condition at 50ft RA ... IF in aircraft family A319, A320, A321 EPR is stable above 1.02 ELSE EPR is

Understanding your events: Derotation Slow

Page 37: Flight Data Monitoring Analysis SpecificationOnly assessed down to 50ft RA, the condition at 50ft RA ... IF in aircraft family A319, A320, A321 EPR is stable above 1.02 ELSE EPR is

Understanding your events: Derotation Slow

Touchdown KTI

Pitch at 60kts Airspeed

Time when Pitch equals Pitch at 60kts Airspeed + 2 degrees

Leads to…

Touchdown To Pitch 2 Degrees Above Pitch At 60kts Duration

Page 38: Flight Data Monitoring Analysis SpecificationOnly assessed down to 50ft RA, the condition at 50ft RA ... IF in aircraft family A319, A320, A321 EPR is stable above 1.02 ELSE EPR is

Questions


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