ATC of Near-Miss over BOS

How does something like this get resolved? What is the accuracy of ATC's
transponder data?

Michael

Michael 182 wrote:
How does something like this get resolved? What is the accuracy of ATC's
transponder data?

Within 50' either way. If you're at 1049', it'll show 1000'. Move up one foot
and it'll show 1100'.

George Patterson
Give a person a fish and you feed him for a day; teach a person to
use the Internet and he won't bother you for weeks.

The replay seems to show the Lear did not level at 5,000.

john smith wrote:
The replay seems to show the Lear did not level at 5,000.

You're right. Looks like he climbed right through the MD-80 altitude.

George Patterson
Give a person a fish and you feed him for a day; teach a person to
use the Internet and he won't bother you for weeks.

"George Patterson" wrote in message
news:_%IPe.41$fP.32@trndny08...

You're right. Looks like he climbed right through the MD-80 altitude.


Which is fine if he did so only after visual separation was in use and he
was cleared higher.

john smith wrote

The replay seems to show the Lear did not level at 5,000.

Nor was he required to since he had been cleared to maintain
visual separation.....and separation is separation.
One man's "near miss" is another's "missed him by a mile".

Bob Moore

Bob Moore wrote:

Nor was he required to since he had been cleared to maintain
visual separation.....and separation is separation.
One man's "near miss" is another's "missed him by a mile".

A few months ago I overheard something similar on Syracuse, NY's ATC feed.
A regional Dash-8 was being vectored north around the airport for an
approach while a student and instructor were flying some practice maneuvers
just north of the airport. Normally the instructional flight would have
been many miles further north, but there were low clouds in this designated
practice area.

The instructional flight was given a restriction to maintain at or below
2,000 feet and the Dash-8 was told to maintain 2,500 feet. ATC called the
C172 traffic for the Dash-8 and the pilot of the Dash-8 replied he had
traffic in sight.

A moment later, the Dash-8 pilot called ATC to report that he was
responding to a TCAS alert. He then made an unprofessional comment
directly to the C172 stating that there was no way they were at their
required altitude. ATC responded that through this entire event the C172
was at the altitude to which they were originally restricted.

Given the unprofessional comment made by the Dash-8 pilot, it seemed to me
that after calling traffic in sight, both pilots went heads down in
preparation for landing and the TCAS alert shocked them back outside.

--
Peter


















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Peter R. wrote:

Given the unprofessional comment made by the Dash-8 pilot, it seemed to me
that after calling traffic in sight, both pilots went heads down in
preparation for landing and the TCAS alert shocked them back outside.

Someone with whom I fly occasionally likes to tell ATC of traffic in sight
whenever it's in sight. I'll refrain if, for some reason, I'll be unable
to maintain visual separation (ie. I'm about to lose site of the other
aircraft over the wing).

I don't want to be responsible for visual separation from something I cannot
see.

Technically, of course, I know that this really only applies when we're both
IFR. But I follow this habit all the time anyway.

Problem? Good idea?

- Andrew

"Andrew Gideon" wrote in message
online.com...

Technically, of course, I know that this really only applies when we're
both
IFR. But I follow this habit all the time anyway.


Visual separation can be used for VFR traffic where VFR traffic is provided
separation, such as Class B or Class C airspace or TRSAs.

Andrew Gideon wrote:

Technically, of course, I know that this really only applies when we're both
IFR. But I follow this habit all the time anyway.

Problem? Good idea?

Personally, I use this sometimes. However, lately I will also call IFR
traffic before ATC does (assuming VMC) if I strongly suspect that the other
IFR aircraft (normally jet traffic) is the reason for my delaying vectors.
This results in a more timely "maintain visual separation, cleared direct
to..."

--
Peter


















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