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AA.VI.D.K1

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Procedures and limitations associated with a non-precision approach, including the differences between Localizer Performance (LP) and Lateral Navigation (LNAV) approach guidance.

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From the FAA library

  • Chapter 4: Approaches › Localizer and Localizer DME

    Localizer Approaches As an approach system, the localizer is an extremely flexible approach aid that, due to its inherent design, provides many applications for a variety of needs in instrument flying. An ILS glideslope installation may be impossible ... surrounding terrain. The localizer is able to provide four separate types of non-precision approaches from one approach system: Localizer approach • Localizer/DME approach • Localizer back course approach • Localizer-type directional aid (LDA) Localizer and Localizer DME The localizer approach system…

  • Chapter 4: Approaches › Final Approach Segment

    Final Approach Segment The final approach segment for an approach with vertical guidance or a precision approach begins where the glideslope/glidepath intercepts the minimum glideslope/ glidepath intercept altitude shown on the approach chart. If ATC authorizes a lower intercept altitude ... final approach segment begins upon glideslope/glidepath interception at that altitude. For a non-precision approach, the final approach segment begins either at a designated FAF, which is depicted as a cross on the profile view, or at the point where…

  • Chapter 4: Approaches › GPS Stand-Alone/RNAV (GPS) Approach

    Overlay of Nonprecision Approach The original GPS approach procedures provided authorization to fly non-precision approaches based on conventional, ground-based NAVAIDs. Many of these approaches have been converted to stand-alone approaches, and the few that remain are identified ... name of the procedure and “or GPS.” These GPS non-precision approaches are predicated upon the design criteria of the ground-based NAVAID used as the basis of the approach. As such, they do not adhere to the RNAV design…

  • Chapter 5. Air Traffic Procedures › Section 4. Arrival Procedures › 5-4-21. Missed Approach

    provided, the pilot should conform to radar vectors when provided by ATC in lieu of the published missed approach procedure. (See FIG 5-4-31.) e. Some locations may have a preplanned alternate missed approach procedure ... event the primary NAVAID used for the missed approach procedure is unavailable. To avoid confusion, the alternate missed approach instructions are not published on the chart. However, the alternate missed approach holding pattern will be depicted on the instrument approach…

  • Chapter 4: Approaches › Approach Clearance

    meet the precision approach standards of ICAO Annex 10, but provides course and glidepath deviation information. For example, Baro-VNAV, LDA with glidepath, LNAV/VNAV and LPV are APV approaches. Non-precision approach (NPA)—an instrument approach based on a navigation ... system that provides course deviation information but no glidepath deviation information. For example, VOR, TACAN, LNAV, NDB, LOC, and ASR approaches are examples of NPA procedures. Missed Approach Segment The missed approach segment begins at the MAP and ends…

  • Chapter 5. Air Traffic Procedures › Section 4. Arrival Procedures › 5-4-5. Instrument Approach Procedure (IAP) Charts

    important that pilots understand these procedures and their use prior to attempting to fly instrument approaches. 7. TERPS criteria are provided for the following types of instrument approach procedures: (a) Precision Approach (PA). An instrument approach based on a navigation ... system that provides course and glidepath deviation information meeting the precision standards of ICAO Annex 10. For example, PAR, ILS, and GLS are precision approaches. (b) Approach with Vertical Guidance (APV). An instrument approach based on a navigation system that…