Federal Aviation Administration Airport 20 to 1 Approach Surface Georgia Airports Association (GAA) Annual Workshop Cindy M Hintz Eastern Flight Procedures Team March 14, 2014

Federal Aviation Administration 2 20:1 Approach Penetrations Criteria developed by Flight Standards in the late 1990s Requires clear 20:1 approach surface for night minimums Visual aids (VGSI) such as VASI or PAPI were designated as a possible mitigation All terminal procedures are currently reviewed every two years, as required by AFS policy. During that periodic review, or other amendments, the TERPS Specialist in AeroNav Products may identify obstacles that penetrate the 20:1 visual surface.

Federal Aviation Administration 3 20:1 Penetrations (continued) Background: During Oct 2012, Flight Standards Division AFS-400 required immediate NOTAM action resulting in “Not Authorized (NA) at night when 20:1 identified. Current Policy: Effective Jan 6, 2014, refined policy considered “Risk” factor of the identified penetrations and allowing a validation period (30 days). Validation: To verify if the obstacle exists or has been removed, and/or if the obstacle is lighted.

Federal Aviation Administration 4 20 to 1 Approach Surface (TERPS)

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Federal Aviation Administration 6 20 to 1 Penetrations Identified/reported by various offices: EFPT, ANP, GDOT, FC and soon, Geographic Information System (GIS) tool - Mandatory biennial reviews / OKC ANP - During instrument procedure amdts Result in loss of night time capability Daytime visibility restricted to 1 SM

Federal Aviation Administration 7 Identification of 20 to 1 Penetrations Typical scenario: During biennial review of airport’s procedure(s) OKC development branch identifies non-validated penetrations. - - Specialist’s findings are forwarded to EFPT, assigning each penetration with risk assessment of high, medium or low. - - EFPT adds GoogleEarth overlay to the file (.kml)

Federal Aviation Administration 8 20 to 1 penetrations (cont) - - Within 3-business days, file is forwarded to airport requiring sponsor to validate each penetration ASAP, but no more than 30-days / ADO copied Airport owner/sponsor must provide a written report and copy ADO No response received within prescribed timeframe will result in IAP visibility minima and night capability as required.

Federal Aviation Administration 9 Airport Owner / Sponsor Response If 20 to 1 penetrations determined invalid - - EFPT will notify applicable offices to update airport’s data file(s); no action required to restrict or modify subject IAP. If 20 to 1 penetrations determined valid: - - Submit written compliance plan - - Remove, light or lower - - Actions taken per risk Assessment criteria

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Federal Aviation Administration 12 Possible Mitigation Actions Visual Glideslope Indicator (VGSI) - Apt Mgr submits Form seeking AFS approval Apply ILS / LOC / LPV / LP Full-Scale Deflection - Calculation, conducted by ANP when trying to mitigate 20:1 penetration vs restricting night mins Restrict only CAT C/D approach category minimums vs restricting CAT A/B/C/D -If penetrations are outside CAT A/B area

Federal Aviation Administration 13 Mitigate by Aircraft Category Most common GA 20 to 1 issue - - Runway type often, e.g., BII - - Charted minima CAT C/D - - CAT A/B begins at +/- 200 FT - - CAT C/D begins at +/- 400 FT Airport cannot clear larger surface area - - Other mitigation N/A (VGSI/Deflection) - - Restrict CAT C/D minima only

Federal Aviation Administration 14 Jim Hamilton L.B. Owens (KCUB), SC RWY to 1 penetrations - Clearing project lasting several years - Received official notification - Provided compliance plan, VGSI checklist and initiated flight check within 30 day window - EFPT forwarded to OKC requesting temporary VGSI mitigation and requested OKC ANP perform check of full-scale deflection and evaluate CAT A/B vs CAT C/D penetration(s)

Federal Aviation Administration 15 VDP or DA

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Federal Aviation Administration 20 Thank you Questions?

Federal Aviation Administration 21 Contact Info Cindy M Hintz Eastern Flight