Maximum PT entry altitude Notation

It is difficult to state the exact reason why, but we can offer the
following factors...

1. Airspace
2. Traffic interference with ARTCC or terminal radar patterns
3. Navaid reception


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PilotWeb.org wrote:

It is difficult to state the exact reason why, but we can offer the
following factors...

1. Airspace
2. Traffic interference with ARTCC or terminal radar patterns
3. Navaid reception


It comes closest to No. 1. It is a new brain child of some feds.

There are three procedure turn template sizes.

1. sea level to 6,000.

2. above 6,000 to 10,000

3. above 10,000.

The determinant altitude is the higher of the highest feeder altitude or
the PT completion altitude, whichever is higher.

At all three subject locations choice 1 is applicable. But, some
procedure folks are now suddenly worried about someone being "too" high
for choice 1.

It is currently being debated.

Everett M. Greene wrote:

Roy Smith writes:

wrote:


Can anyone explain the reason for the note "maximum procedure turn
entry altitude 6000 feet" on the ILS or LOC RWY 20 at KALW, Walla Wala
Regl, WA? Is this a TERPs thing? Other approaches the same?

The PT completion altitude is permitted to be as much as 2,000 feet
above the inbound altitude. That maximum is not close to being reached
at RDL, OLM, or ALW.

Several years ago TERPS was amended to have three pattern sizes for
procedure turns from the former one pattern (speaking only of 10-mile
turns).

In Change 18 of TERPS the former single pattern became the new "small"
pattern for minimum possible altitude to 6,000. The new, midsize
pattern was introduced to handle 6,000 to 10,000, and the large size
pattern was introduced to handle above 10,000.

The selection process was the highest feeder route altitude or procedure
turn completion altitude, whichever is higher.

This worked fine until someone in the FAA decided that pilots are stupid
and might come barreling in at 17,000 feet or so. So, enters the cap.

There was no coordination with industry groups, nada.

Now, the pot is being stirred.

They were getting ready to do it at HQM (VOR Runway 6) but that has been
objected to in coordination and is now on hold.

http://www.avn.faa.gov/folderdetail....-HQM&replace=1