Last month we published an excellent article by Lee Smith, “Danger Below MDA.” In it, Lee points out that for many non-precision approaches you can’t tell from the approach chart, no matter whether you’re using AeroNav or Jeppesen charts, what level of obstruction clearance you have—or don’t have—below the MDA on your way to the runway.
Look Out Below
Key Takeaways:
- Non-precision approach charts often lack clear information regarding obstruction clearance below the Minimum Descent Altitude (MDA).
- While GPS provides vertical guidance, relying on it below MDA is dangerous as it does not guarantee obstacle clearance, even if centered.
- Once visual below MDA, pilots must prioritize external visual references and actively "see and avoid" obstacles, rather than depending on GPS vertical guidance.
Key takeaways sponsored by Aviator Pro | Start Your Training ->
See a mistake? Contact us.
