1. Federal Aviation Administration Airport 20 to 1 Approach Surface & Restoring Night Minimums Georgia Airports Association (GAA) 2015 Annual Workshop Cindy M Hintz Eastern Flight Procedures Team February 27, 2015

2. Federal Aviation Administration 2 20:1 Penetrations Background Late 1990’s: Criteria developed by Flight Standards (AFS). Oct 2012: AFS required immediate NOTAM action to restrict night operations when 20:1 penetrations identified. Jan 2014: Refined policy considered “Risk” factors based on the amount of obstacle penetration, allowed the airport manager a 30 day validation period, and allowed for Category A/B and C/D surface areas to be restricted independently. (NOTAMs could restrict the C/D area only if the A/B area was clear of penetrations).

3. Federal Aviation Administration 3 AFS has implemented a change to FAA Order 8260.3B, United States Standards for TERPS, Straight-in Visual Area Beginning Width. Recent Change to 20:1 Dimensions

4. Federal Aviation Administration 4 Dimension Changes Outlined

5. Federal Aviation Administration 5 New vs Old 20:1 (Width) Original 20:1: CAT C/D beginning width 800FT Revised (20:1 & 34:1): CAT A/B/C/D beginning width 400FT

6. Federal Aviation Administration 6 TERPS Offset Evaluation

7. Federal Aviation Administration 7 How are 20:1 Approach Penetrations Identified ????? Biennial Review: Terminal instrument procedures reviewed every two years against current criteria. During this review 20:1 penetrations may be identified. Routine Amendments: While amending procedures to support airport improvement projects or Air Traffic change requests, current criteria is applied and 20:1 penetrations may be identified.

8. Federal Aviation Administration 8 When 20:1 Penetrations Identified Notification Process Initial Notification : Within 3 business days, a file is forwarded to the airport sponsor requiring validation of each penetration ASAP, but not more than 30 days. The Airport District Office (ADO) is info copied. Action required by sponsor : Airport owner/sponsor must provide written validation report to FPT and info copy ADO. No Response : If no response received from sponsor within 30 days, the penetrations will be treated as existing and the instrument Approach Procedures (IAPs) will be restricted at night by NOTAM.

9. Federal Aviation Administration 9 Obstacle Verification Verification: Airport owner/sponsor must verify the validity of each penetration as soon as possible but notification must not exceed 30 calendar days. 20:1 Determined Invalid: Sponsor determines the obstacle does not exist or it has been removed or reduced in height that no longer penetrates the 20:1 surface. (Documentation Required). 20:1 Determined Valid: Sponsor determines the obstacle does exist at the reported location/height.

10. Federal Aviation Administration 10 Airport Owner/Sponsor Required Response If 20:1 penetrations determined INVALID : FPT will notify applicable offices to update airport’s data file(s). NOTAM action will not be taken to restrict or modify Instrument Approach Procedure (IAP). If 20 to 1 penetrations determined VALID: –Airport owner/sponsor submits written compliance plan. –Airport owner/sponsor mitigates the penetration through removal, lighting, reduction in height, or VGSI waiver. –FAA action taken per Risk Assessment Criteria

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13. Federal Aviation Administration 13 Alternate Mitigation Option using Visual Glide Slope Indicator (VGSI): Temporary waiver good for 30 days while obtaining Flight Standards Approval. VGSI Mitigation Requirements: –Equipment Unrestricted & Clear OCS –Angle of VGSI equal to or less than IAP angle –TCH not more than 15 FT higher than IAP TCH –Visual Descent Point (VDP) not published –Visibility not lower than 1 SM.

14. Federal Aviation Administration 14 Alternative Mitigation Option using Full-Scale Deflection of ILS/LOC/LPV/LP

15. Federal Aviation Administration 15 AeroNav Products Automatically Evaluates for this

16. Federal Aviation Administration 16 Obstacles Mitigated – NOW WHAT??? Trees Removed: Notify FPT of tree removal. Include Obstacle Identification (ID). Trees Trimmed: Notify FPT of completed tree trimming. A stamped and signed survey must be provided to support a new obstacle height. –Obstacle ID with Coordinates –Site Elevation with Accuracy Code (AC) –Revised Tree MSL and AGL Height Structures Lighted: Notify FPT if the structure has been lighted (Include the obstacle ID).

17. Federal Aviation Administration 17 Re-Evaluation of Night Restrictions Existing Night Restrictions: Contact FPT and ask for a re-evaluation of your airport to determine if the new surface area provides any relief to your airport. NOTAMs: –If there are existing NOTAMs and it’s determined the 20:1 penetrations are no longer applicable or have been removed, the NOTAM can be cancelled –If restrictions are already charted (NA at Night) and it’s determined the restriction is no longer applicable, it’s possible to regain night operations through a temporary NOTAM followed by a chart amendment.

18. Federal Aviation Administration 18 Thank you Questions?

19. Federal Aviation Administration 19 Contact Info Cindy M Hintz Eastern Flight Procedures Team @faa.gov @faa.gov404-305-5956, cindy.m.hintz@faa.govcindy.m.hintz@faa.gov