RNP – The Expectations?

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Session 4
RNP The Expectations? Certification Issues
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RNP Airworthiness Operational Implementation in
the U.S.
Presentation to Eurocontrol Workshop
Implementing RNP Toulouse, France Barry
Miller Aircraft Certification Lead for U.S. RNP
Implementation FAA Avionics Standards Branch,
Aircraft Certification Service (AIR-130) October
5, 2005
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RNP Airworthiness Operational Implementation
Overview

• RNP Strategy A Change in Perspective
• The Three-Legged Stool
• RNP Operational Approval
• Background Aircraft Certification
• The Role of Aircraft Certification
• The Role of the Manufacturer

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RNP Strategy A New Perspective

• Tradition ? Design Airspace Around the Aircraft
• Example Implementation of ILS Procedures
• New Paradigm ?
• Define the Airspace to Meet Operational Needs
• Define the Operational Procedures Design Criteria
  to Meet Airspace Definition ? TERPS or PANS-OPS
• Then, Define the Aircraft Requirements for
  Operations in the Airspace
• The RNP Strategy ? A Three-Legged Stool
• Air Traffic Criteria
• Operations Criteria ? Including Procedure Design
  Criteria
• Aircraft Qualification Criteria

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The Three-Legged Stool

• Define the Air Traffic Criteria
• Define the Airspace
• Air Traffic Control Procedures
• Define the Operations Criteria
• Procedure Design Criteria
• Operational Performance Requirements
• Define the Aircraft Qualification Requirements
• Find Foundation in the Operational Criteria
• Embrace Existing RNP Airworthiness Approvals
• Define Operational Mitigations

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RNP Operational Approval

• Define the Aircraft Performance Characteristics
• Applicability to Desired RNP Procedures
• Examples RF Turn Capability, TOGA Performance
• Develop Pilot Operations Training Requirements
• Aircraft System Operations Related to the RNP
  Procedures
• Example GNSS Required ? A Starting Point
• Pilot Alerting Operational Limitations for RNP
  Procedures
• New Pilot Procedures to Accommodate FTE
  Monitoring
• Go-Around Capability Exists Does Not Exceed
  Containment
• Ensure Support for Database Integrity
• Use of Approved Database Suppliers ?? Letter of
  Acceptance (LOA)
• Operator-Defined Database Configuration Control
• Applicability of Operational Database Checks
  Simulator Aircraft

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Background Aircraft Certification

• Airworthiness Key ? Intended Function
• 14 CFR 25.1301 25.1309 ? Intended Function
• Absent RNP Standards ?
• Document Aircraft Capability Performance
• The Aircraft Flight Manual (AFM)
• Does Not Constitute Operational Approval
• RNP Airworthiness Approvals for Many Aircraft
• Boeing, Embraer, Gulfstream Airbus

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Role of FAA Aircraft Certification

• Support the Operations Approval
• Define Aircraft Performance Characteristics
• Alerting Display Scaling TOGA Inertial
  Performance
• Approve Data Suppliers ? FAA AC 20-153 ? LOA
• Support New Aircraft Certification Projects
  (TC/STC)
• Future Draft FAA Advisory Circular 90-RNP SAAAR
  Approval for Required Navigation Performance
  (RNP) Procedures with Special Aircraft Aircrew
  Authorization Required (SAAAR)
• Expect Manufacturer to Use Specific, Defined
  Criteria

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Role of Aircraft OEMs

• Document Aircraft Performance
• Examples Altimetry System, Flight Technical
  Error (FTE)
• Assist Aircraft Customers Achieve Ops Approval
• Provide Aircraft Qualification Operations
  Guidance
• Tailored to the Specific RNP Operation
• Minimum Equipment List for the RNP Operations
• Systems Operations to Achieve the RNP
• Recommend Pilot Procedures for RNP Procedures
• Pilot Monitoring Requirements
• Pilot Response to Alerts Annunciations of
  Performance
• Flight Technical Error (FTE) Limitations
• System Crosschecks
• Aircraft-Specific Operational Mitigations

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Summary of RNP Airworthiness Operational
Implementation

• RNP Strategy A New Paradigm
• Balancing a Three-Legged Stool
• RNP Operational Approval
• The Role of Aircraft Certification
• The Role of the Manufacturer

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Thank you for your attention
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Session 4
RNP The Expectations? Certification Issues