PBN to XLSA Data House Perspective

Final Approach Symposium

Agenda01 Involved Parties 03 An example – RNP 1 transition to GLS

approach

02 Coding of PBN Procedures 04 Problems & Solutions

The involved Parties

The Involved Parties

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• The aircraft manufacturer, examples:

• Airbus

• Boeing

• Embraer

• Canadair

• Define the functional requirements of the FMS

• Define the avionics suite

• Define the user interaction

The Involved Parties

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• The avionics manufacturer, examples:

• Honeywell

• GE Aviation

• Thales

• Rockwell Collins

• Design the avionics suite

• Define the requirements of the FMS

• Build the Database packing tool

The Involved Parties

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• The data house, example:

• Lido

• Jeppesen

• NavBlue

• Code the data required by the avionics manufacturer

• The data is coded according the industry standard ARINC-424

• The requirements for each FMS may be different

The Involved Parties

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• The datahouses typically produce charts in addition to data

• Paper charts

• Electronic solutions

Coding of PBN Procedures

Coding of PBN Procedures

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• When PBN was introduced, it caused confusion.

• A new way of designing procedures

• Implementation of Navigation Specifications

Coding of PBN Procedures

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• No changes in ARINC 424 specification with ICAO PBN Manual implementation

• Except

• The PBN Navigation Specification was introduced in

ARINC 424-21

• Coding rules for

• LPV (SBAS based approaches)

• RNP AR (SAAAR at the time)

• GLS

• RF leg

• RNP values

where introduced before the ICAO PBN Manual was released.

An example – RNP 1 transition to GLS approach

Example – PBN transition to GLS Approach in Zurich

January 31, 2017PBN to XLS - A Data House Perspective12

Example – PBN transition to GLS Approach in Zurich

January 31, 2017PBN to XLS - A Data House Perspective13

• The segment between the IF and the FAP is

curved, coded with an RF leg

• The transition is coded to the FAP

Example – PBN transition to GLS Approach in Zurich

January 31, 2017PBN to XLS - A Data House Perspective14

• No vertical angle is published outside the FAP

• The segment between the IF and the FAP is “level”

• Same minimum altitude constraints apply at the IF

and the FAP

Example – PBN transition to GLS Approach in Zurich

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Problems & Solutions

Problems & Solutions

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Problems & Solutions

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Short-term:

In the tailored data for the aircrafts performing the demo flights, it was possible to extend the transition to the FAP, violating the ARINC 424 requirement.

Only possible in tailoring, NOT for standard procedures!

Problems & Solutions

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Long-term:

Modify ARINC 424 rules, difficult as certified airborne software possibly needs changes, or

prohibit such procedure design, which might not be desired.

Problems & Solutions

January 31, 2017PBN to XLS - A Data House Perspective20

Long-term:

Modify ARINC 424 rules, difficult as certified airborne software possibly needs changes, or

prohibit such procedure design, which might not be desired.

Problems & Solutions

January 31, 2017PBN to XLS - A Data House Perspective21

• Transition from performance to geometric descend

path

• Typically occurs at the FAF

• Different aircraft FMS calculate the transition

differently

Thank you for your kind

attention

PBN to xLS

Backup

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Backup

Example with Skyguide original source

Example – PBN transition to GLS Approach in Zurich

January 31, 2017PBN to XLS - A Data House Perspective24

Example – PBN transition to GLS Approach in Zurich

January 31, 2017PBN to XLS - A Data House Perspective25

• The segment between the IF and the FAP is

curved, coded with an RF leg

• The transition is coded to the FAP

Example – PBN transition to GLS Approach in Zurich

January 31, 2017PBN to XLS - A Data House Perspective26

• No vertical angle is published outside the FAP

• The segment between the IF and the FAP is “level”

• Same minimum altitude constraints apply at the IF

and the FAP