I have not looked at every ILS to see the answer, but I
would guess that some standard or special [private] ILS
procedure at an airport with many obstructions or in the
mountains could require a GS and not be allowed otherwise.
To get the answer you need to reread the TERPS manual or
perhaps call Flight Standards in OKC and ask the experts.
At the pilot end, fly what is authorized on the chart and by
NOTAM.


"Jim Carter" wrote in message
news:00a401c6c6af$7009ba60$4001a8c0@omnibook6100.. .
|
|
| -----Original Message-----
| From: Dave S [mailto | Posted At: Wednesday, August 23, 2006 5:18 AM
| Posted To: rec.aviation.ifr
| Conversation: Can a failed Glide Slope also void the
Localizer
| approach?
| Subject: Can a failed Glide Slope also void the
Localizer
| approach?
|
| Jim Carter wrote:
| I had a question today that I've never considered, and
need the
| experience of the group.
|
|
|
| Are there airports with ILS approaches such that if
the Glide Slope
| component failed or went OTS, the entire approach
would be
| un-executable
| by regulation? I've always assumed that with the GS
OTS I'd just
| revert
| to the LOC, but are there approaches were the full ILS
is approved
| but
| the LOC only isn't? In other words, are there
precision approaches
| where
| vertical guidance is required and there is no
non-precision
| alternative?
|
|
|
|
| As another has stated: If there is a published localizer
only
| approach,
| or if the ILS approach has published localizer only
minimums, then you
| can proceed with a localizer approach.
|
| If there are no localizer only approaches or minima
charted, then I
| would suspect you cannot do the approach under IFR.
|
| Dave
|
| I think we all understand the concept of Localizer only
approach
| minimums, but my question was "... are there approaches
were the full
| ILS is approved but the LOC only isn't?" Does anyone know
of a specific
| airport?
|
|