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IFR Departures

Gemini Sparkle

Key Takeaways:

  • Pilots, as Pilot-in-Command, always bear the ultimate responsibility for terrain and obstruction clearance during IFR departures, regardless of ATC involvement.
  • ATC's responsibility for obstruction clearance is conditional, transferring to them only after radar contact is established *and* specific navigational instructions (vectors) are issued, not merely upon "radar contact" or a heading in uncontrolled airspace.
  • Pilots must thoroughly review published departure procedures (ODPs, SIDs) and takeoff minimums during pre-flight planning, ensuring their aircraft can meet required climb gradients and communicating any limitations or intentions to ATC.
See a mistake? Contact us.

You and two friends are flying to Nashville for a weekend of great music. It will be an IFR flight from Asheville, North Carolina (KAVL), to John C. Tune (KJWN). Your clearance is what you expect: “Cleared to the John C Tune Airport. Asheville Seven Departure, then as filed. Climb via the SID.” You depart Runway 35 on an assigned runway heading. Handed off to Departure at 3000 MSL, you are instructed to proceed direct Snowbird. Looking in that direction, you notice those mountains look disturbingly close.

Who’s Responsible?

There are two components to ATC clearances and instructions. ATC’s primary responsibility is keeping IFR aircraft from running into each other. Our associated responsibility is to comply with ATC clearances and instructions. Particularly during the approach and initial departure phases, though, we and ATC are also concerned with remaining clear of terrain and obstacles.

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