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Old November 22nd 05, 03:31 PM posted to rec.aviation.ifr
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Default ILS critical area when the tower is closed?


wrote in message news:CYBgf.4677$pF.224@fed1read04...
Steven P. McNicoll wrote:

wrote in message news:Sjwgf.4659$pF.917@fed1read04...

You're a bit out of context. Here is the context:

b. Air carriers commonly conduct "coupled" or "autoland" operations to
satisfy maintenance, training, or reliability program requirements.
Promptly issue an advisory if the critical area will not be protected
when an arriving aircraft advises that a "coupled," "CATIII," "autoland,"
or similar type approach will be conducted and the weather is reported
ceiling of 800 feet or more, and the visibility is 2 miles or more.

When the weather is good, the crew is required to advise the tower when
they intend to do an autoland or even a non-autoland coupled approach. If
the advisory you mentioned is NOT issued then the crew is trained to
expect that the tower is protecting the critical areas.


You're more than a bit out of context. There is no tower to advise as
we're talking about ILS critical areas when the tower is closed.


And, the context of ILS critical areas when a tower is closed would
logically include a discussion of the similarities to an airport that has
an ILS but no control tower.


Okay. One of the similarities between airports that have an ILS but no
control tower and airports that have an ILS and a closed control tower is
that there is no tower to advise of an autoland or a non-autoland coupled
approach and no tower to protect the ILS critical area.