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Gulf of Mexico 50 NM Lateral Separation – RNAV Routes Project

Gulf of Mexico 50 NM Lateral Separation – RNAV Routes Project. Project Overview. Aviation Industry. ATO Oceanic & Offshore Operations (AJE-32). 12 Dec 2012. Objectives. Provide project overview Review provisions for 50 NM lateral separation Review transition to new route structure

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Gulf of Mexico 50 NM Lateral Separation – RNAV Routes Project

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  1. Gulf of Mexico 50 NM Lateral Separation – RNAV Routes Project Project Overview Aviation Industry ATO Oceanic & Offshore Operations (AJE-32) 12 Dec 2012

  2. Objectives Provide project overview Review provisions for 50 NM lateral separation Review transition to new route structure Discuss RNAV route design Direct participants to Gulf of Mexico Webpage See next to last slide 2

  3. Background • SEANEAM and FAA acting as project co-leads • Project coordinated over a 3-year period with industry, ICAO Mexico City and ICAO Caribbean Working Groups • FAA Tech Center completed city-pairs analysis • $1.5 million savings for 31-day March 2011 period

  4. Acronyms LOA………Letter of Authorization NavSpec…Navigation Specification (requirement) for aircraft navigation systems PBN……… Performance-based Navigation RNP……… Required Navigation Performance RNAV…….Area Navigation 4

  5. Terms: RNAV 10 vs RNP 10 • “RNP 10” has same meaning and application as “RNAV 10” • Reference ICAO PBN Manual, Volume II, Part B, Chapter 1: “Implementing RNAV 10, Designated and Authorized as RNP 10”: • “RNP 10” used for GoMex project

  6. NavSpecs Applicable in Oceanic Operations ICAO PBN Manual, Edition 3: RNP 10 and RNP 4 are only NavSpecs applicable to oceanic operations Advance Edition 4 contains provision for RNP 2 Not a factor for GoMex project RNP 10 is the minimum NavSpec required for 50 NM lateral separation 6

  7. Gulf of Mexico Project: Phased Implementation • Phase 1: implemented on 20 Oct 2011 • Lateral separation reduced to 50 NM lateral • Existing GoMex ATS routes remained in place • Policies for 50 NM lateral separation distributed to operators

  8. Project Objectives • On 10 Jan 2013 at 0630 UTC, implement new Gulf RNAV routes --- while retaining two existing ATS routes • Apply 50 NM lateral separation between aircraft authorized RNP 10 (minimum) or RNP 4 • Qualify aircraft equipped with a Single Long Range Navigation System (S-LRNS) for RNP 10 in the Gulf of Mexico – in accordance with ICAO PBN Manual

  9. Phase Objectives (cont.) • Have close to 100% of GoMex flights authorized and filing for RNP 10 or RNP 4 operations • Accommodate the operation of the small percentage of flights not yet authorized RNP 10 • Airspace will not be “exclusionary”, however, ATS providers advocate that operators obtain RNP 10 authorization

  10. Operational Policy and Procedures FAA Notice and DGAC Mexico Circular Obligatoria Posted in Section 6 of GoMex Webpage Documents contain: Provisions for 50 NM Lateral Separation ICAO Flight Plan (FPL) 2012 requirements Provisions For NonRNP 10 Aircraft Operations on Routes Not Affected By Project Guidance on RNP Authorization including for Single LRNS equipage Basic and In-flight Contingency Procedures Note: DGAC Circular being updated 10

  11. ICAO FPL 2012 Flight Plan Entries • Item 10: “R” (PBN approved) • Item 18 (Other Information) entries • “PBN/A1” (RNP 10 ) or… • “PBN/L1” (RNP 4) • NonRNP 10 aircraft: • Item 18: “RMK/NONRNP10” (first remark) • !! Some operators not yet filing RNP 10 or RNP 4

  12. NonRNP 10 aircraft • 50 NM lateral separation cannot be applied to NonRNP 10 aircraft • Strongly advocate that GoMex operators obtain and file RNP 10 authorization to maximize project benefits • Single Long Range Navigation System equipped aircraft qualify for GoMex RNP 10 • Operators can contact RGrimes@cssiinc.com for RNP 10 authorization questions

  13. NonRNP 10 Pre-coordination • No earlier than 2 hours prior to departure, ALL NonRNP 10 operators to contact Houston Operational Supervisor at +1-281-230-5552 • Provide call sign, route of flight and ETA to enter Houston FIR • Pilots to state “Negative RNP 10” • On initial call to GoMex ATC Center or… • If status requested by controller

  14. Transition to New Routes-10 Jan 2013 • Transition Sequence of Events planned with SENEAM and industry representatives • Point-to-point Transition Routes planned for aircraft without updated Nav Databases for 0630 - 1500 UTC time period • Transition route chart and instructions posted on Webpage and in FAA and SENEAM NOTAMS (ZHU A0970/12; ZMA A1449/12)

  15. Transition Procedures-10 Jan 2013 • Until 0630 UTC, aircraft will file the EXISTING GoMex route structure. • At/after 0630 UTC, aircraft are expected to file and fly the NEW GoMex route structure, HOWEVER…between 0630-1500 UTC aircraft whose navigation computers have not been updated with NEW GoMex routes may file direct between stand-alone waypoints identified in the Transition Routes.

  16. TransitionRoutes - GOMEX

  17. Transition Procedures (cont.) • At/after 1500 UTC, only Route 2 (A766) and Route 3 (A770) will be available to aircraft unable to fly the NEW routes. • If alternative routes are needed, operators must call the appropriate Area Control Center prior to departure.

  18. Pre-implementation Telcons • Wednesday, 12 Dec at 1800 UTC • Thursday, 3 Jan at 1800 UTC • If required: Monday, 7 Jan at 1800 UTC • Wednesday, 9 Jan LOCAL at 1900 US Eastern, 1800 US Central/Mexico time

  19. Vertical and Horizontal Boundaries Control Areas affected: Houston and Miami Oceanic CTA/FIR Monterrey CTA Merida High CTA Flight level stratum All flight levels at/above the published MEA

  20. Current GOMEX ATS Routes with Approximate Radar Coverage

  21. SENEAM Gulf Chart

  22. Significant Elements of Route Design A649 LEV-PAZ deleted to move traffic onto M575 and M345 where crossing traffic can be managed under radar L207 will be a new RNAV route between Scholes (VUH) and Campeche (CPE) A766 will remain as published UT40 (DUTNA-SIGMA) to provide new overflight option A770 to remain as published, co-designated UA770/UL209 – A770/L209 south of KEHLI Enhanced routing to CUN for flights overflying CIGAR-MINOW Enhanced eastern Gulf overflight routing: M215-MINOW-PISAD-UL333-DUVMU-UT29-SIGMA 22

  23. Route Operations Guidance • Document provides guidance on one-way routes, altitude and time restrictions, recommended arrival and overflight routing, etc. • Distributed to industry groups on 30 Nov • Posted on FAA GoMex Webpage • Mexican AIP provides route operations guidance for individual routes 23

  24. Gulf 50 NM Lateral Separation Webpage • FAA and SENEAM coordinated on Webpage development • Information on plans, policies and procedures for 50 NM lateral separation and RNAV routes posted: www.faa.gov/about/office_org/headquarters_offices/ato/service_units/enroute/oceanic/gomex/

  25. Questions?

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