IFR Cancellation Question

A Lieberma wrote:

Correct me if I am wrong as I have never been in the ADIZ, but in the ADIZ,
you will hear IFR cancellation received, but you WILL NOT hear "Squawk VFR,
have good day"

Correct, they usually will remind you to "remain on this squawk until on
the ground" but I don't think there's any obligation that the do this.

Mark Hansen wrote:

So I wonder if the confusion came when ATC told Allen to Squawk VFR?
This just means that you're no longer in radar contact, and not that
you're no longer IFR, right?


No, the loss of radar contact of an IFR aircraft doesn't call for a
code change, it calls for advising the aircraft that radar contact was
lost.

Roy Smith wrote:
A Lieberma wrote:
They would if the tower had no radar.
Ok, makes sense on the radar services being terminated, but the IFR
clearance still applies for airspace seperation?

IFR would be then cancelled once wheels touch ground???

At a towered airport without radar, you are still IFR until your wheels
touch the ground (assuming you don't cancel on your own). IFR separation
doesn't require radar contact. It doesn't even require radio contact.
Both of those just make it possible to apply more efficient methods of
achieving the required separation.

It doesn't even require a tower. Just a control zo-er um surface area
of controlled airspace.

Roy Smith wrote:

At a towered airport without radar, you are still IFR until your wheels
touch the ground (assuming you don't cancel on your own).


The same applies at towered airports with radar.

A Lieberma wrote:



IFR would be then cancelled once wheels touch ground???

ATC takes no overt action to cancel an IFR aircraft landing at a towered
field. You just land.

Newps wrote:


A Lieberma wrote:



IFR would be then cancelled once wheels touch ground???

ATC takes no overt action to cancel an IFR aircraft landing at a towered
field. You just land.

Really, then how does the system know you landed and not crashed on
approach?

Ron Natalie wrote:
Newps wrote:



A Lieberma wrote:



IFR would be then cancelled once wheels touch ground???


ATC takes no overt action to cancel an IFR aircraft landing at a
towered field. You just land.


Really, then how does the system know you landed and not crashed on
approach?

ATC as in approach takes no overt action. The tower controller hits the
land line to approach and says "N12345 is on the ground" end of IFR flight.

Robert Chambers wrote:



Really, then how does the system know you landed and not crashed on
approach?


ATC as in approach takes no overt action. The tower controller hits the
land line to approach and says "N12345 is on the ground" end of IFR flight.




He does no such thing. No calls, whatsoever. There's no need to.

Newps wrote:


Robert Chambers wrote:



Really, then how does the system know you landed and not crashed on
approach?


ATC as in approach takes no overt action. The tower controller hits
the land line to approach and says "N12345 is on the ground" end of
IFR flight.


He does no such thing. No calls, whatsoever. There's no need to.

I've been in a tower cab when this happened. I've also been there when
they've hit the button, called the tracon and gotten a release.

Were they special occasions? I don't know I don't spend a lot of time
visiting.

Explain how it happens at your location.

Newps writes:
Robert Chambers wrote:

Really, then how does the system know you landed and not crashed on
approach?

ATC as in approach takes no overt action. The tower controller hits the
land line to approach and says "N12345 is on the ground" end of IFR flight.

He does no such thing. No calls, whatsoever. There's no need to.

Are you saying that a telephone call isn't made or are
you saying that nobody in the tower closes the flight
plan?