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Readback: April 2013

Gemini Sparkle

Key Takeaways:

  • Upcoming FAA policy will require charting localizer offset values for various instrument approaches.
  • Pilots may occasionally be directed to call Approach Control directly for IFR clearances, although Flight Services typically relays them.
  • WAAS availability for LPV approaches is dynamically calculated by avionics, meaning real-time conditions (e.g., satellite geometry) can impact vertical guidance even if charts contain outdated "WAAS unreliable" notes.
  • The article clarifies several IFR procedural misunderstandings from a previous quiz and cautions pilots to prioritize safety over legality when transitioning from IFR to VFR for nearby airports.
See a mistake? Contact us.

Where’s the Runway?
In December’s Readback, reader Mark Spencer asked about localizer offsets. In the answer, you said the offset value is not published for LDA approaches. That’s true for now. However a change to policy for the FAA will require charting the amount of offset for any ILS, LOC, MLS, LDA, LDA w/GS, RNP, LPV, LNAV and LNAV/VNAV approach.

…an inside source at the FAA
Oklahoma City, Oklahoma

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