# Presentation: 657996

## WATRS Plus Airspace Redesign and Separation Reduction

**Presented by: ****	****FAA Flight Technologies and Procedures Division (AFS-400)**
**Date: ****	****22 Feb 2008**

**Operational Approval for RNP-10**

## Introduction

- RNP 10 applied to enable 50NM lateral separation in Pacific oceanic operations since 1998
- This briefing provides an overview of:
- operator and aircraft RNP 10 requirements and...
- policy and processes for operators to obtain operational approval for RNP 10

## APPLICABLE ICAO DOCUMENTS

**APPLICABLE ICAO DOCUMENTS**

- For non-US operators...
- New ICAO Document 9613 (Performance Based Navigation (PBN) Manual
- Published Spring 2007
- Doc 9613 referenced in ICAO RNP 10 and RNP 4 Job Aids

## ICAO DOCUMENTS (CONT.)

- 	ICAO Doc 9613 offers as example State approval processes:
**FAA Order 8400.12 **(Required Navigation Performance 10 (RNP 10) Operational Approval) and...
**Australian Civil Aviation Advisory Publication RNP 10-1**

## APPLICABLE FAA Documents

**FAA Order 8400.12A**
- Remains valid technical and operational guidance
- Being updated to delete dated language
- Do not anticipate significant policy changes
**FAA Order 8400.33** (Authorization for RNP-4 in Oceanic and Remote Area Operations).
**Both documents now posted in Section 2 of FAA WATRS Plus Webpage **

## FAA Documents (Cont.)

**Inspector Guidance, FAA Order 8900.1, Electronic Handbook. **Paragraph 4-107 (RNP in Class II Airspace) followed in the RNP 10 Job Aid.  Paragraph 4-107 is in Vol. 4, Chapter 1, Section 5 (Special Navigation Areas of Operation).
**Operations Specifications Paragraph:**  B036
- 	(Class II Navigation Using Multiple Long-Range Navigation Systems (LRNS))
**IGA Automated Letter of Authorization (LOA):**
- 	LOA B036 (Operations in Required Navigation  Performance Airspace)

## Content of Application For RNP-10 Operational Approval 

**1.****	****RNP-10 Aircraft Eligibility Group:  ** airworthiness documents that establish  _aircraft/navigation system group_, its _RNP-10 approval status_, and _list of airframes_
**2.****	****Approved RNP-10 Time Limit For Aircraft Equipped With Only INS or IRU Systems**

## Content of Application For RNP-10 Operational Approval

**RNP-10 Area of Operations For INS or IRU Only Aircraft:  **documentation that establishes _RNP-10 area of operations or tracks_ for which the specific aircraft/navigation system is eligible
- Show method and effect of aircraft position updating enroute
- Conduct _route evaluation_ in accordance with 8400.12, paragraph 15

## Content of Application For RNP-10 Operational Approval

**4.****	****Operating Practices and Procedures:  **documentation that operator has adopted operating practices and procedures related to RNP-10 operations
**5.****	****Pilot and Dispatcher Training:  **documentation that operator pilot and if applicable, dispatcher knowledge of RNP-10 policy & procedures will be adequate.
- For commercial Air Transport operators:  training programs updated

## Content of Application For RNP-10 Operational Approval

**6.****	****Maintenance Practices and Procedures:**   documentation that appropriate maintenance practices and procedures have been adopted
**7.****	****Minimum Equipment List (MEL):  **MEL updates, if applicable.
**8.****	****Operating History:**  operating history identifying past problems and incidents, if any, and actions taken to correct the situation.

## Content of Application For RNP-10 Operational Approval

**Follow-up Action After Navigation Error Reports and Potential For Removal of **
**	****RNP 10 Operating Authority:**  awareness of  necessity for follow up action after navigation error reports and the potential for removal of RNP 10 operating authority.

## RNP 10 Navigation System Requirements 

- Two operational Long-Range Navigation Systems (LRNS) meeting RNP 10 standards required
**RNP-10 time limit for INS & IRU systems:**
- 	6.2 hour time limit between position updates for aircraft on which INS or IRU’s serve as the only LRNS
**unless extended time limit approved in accordance with 8400.12**

## RNP-10 Time Limit for INS & IRU Systems (cont.)

- Extended RNP-10 time limits of 10 hours & greater already approved for many IRU systems
- Time limit may be issue for INS only equipped aircraft on westbound flights entering WATRS Plus airspace from Europe, Africa and the
- 	Mid-East.

## 8400.12 Aircraft RNP-10 Eligibility Groups 

**	**_**Eligibility Group 1**_** – Aircraft Eligibility Through RNP Certification**
- RNP compliance documented in Airplane Flight Manual (AFM)
- Typically not limited to RNP-10
- Example:  B747-400 or A-340 incorporating FANS 1/A package

## 8400.12 Aircraft RNP-10 Eligibility Groups 

**	**_**Eligibility Group 2**_** – Eligibility Though Prior Navigation System Certification**
- 1.	Dual INS or IRU’s approved in accordance with **Part 121, Appendix G** (6.2 hour RNP-10 time limit, unless action taken to extend)
- 2.	Dual INS or IRU **approved for NAT MNPS or Australian RNAV operations (**6.2 hour    RNP-10 time limit unless action taken to extend)

## RNP 10 Eligibility Group 2 (cont.) 

- Dual GPS approved for **primary means of navigation in oceanic and remote areas**
- Approved in accordance with **AC 20-138 (as amended)** (34-minute limit on Fault Detection & Exclusion (FDE) non-availability
- GPS/WAAS systems installed in accordance with AC 20-138A incorporate primary means capability
**TSO-C145a and TSO-C146a are applicable**

## RNP 10 Eligibility Group 2 (cont.)

- Multi-sensor systems integrating GPS (GPS integrity provided by RAIM or Aircraft Autonomous Integrity Monitoring (AAIM))....approved in accordance with
**	****AC 20-130A**
- Single INS or IRU in combination with a single TSO C-129 authorized GPS with approved FDE** **
- 34-minute FDE non-availability time limit

## 8400.12 Aircraft RNP-10 Eligibility Groups

**	**_**Eligibility Group 3**_** – Aircraft Eligibility Through Data Collection**
**1.****	****8400.12, Appendix 1 (Sequential Method):**   uses Pass/Fail graphs to assess INS or IRU performance and RNP-10 time limit
**2.****	****8400.12, Appendix 6 (Periodic Method):  **allows use of hand-held GPS to assess INS or IRU performance and RNP-10 time limit

## Contacts

**Madison Walton (AFS-400)**
- 202-385-4596;  madison.walton@faa.gov
**Roy Grimes (CSSI, Inc., FAA Program Support)**
- 202-863-3692;  RGrimes@cssiinc.com