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last assigned altitude unless a different altitude is
assigned by ATC, or until the aircraft is established on
a segment of a published route or IAP. After the
aircraft is so established, published altitudes apply to
descent within each succeeding route or approach
segment unless a different altitude is assigned by
ATC. Notwithstanding this pilot responsibility, for
aircraft operating on unpublished routes or while
being radar vectored, ATC will, except when
conducting a radar approach, issue an IFR approach
clearance only after the aircraft is established on a
segment of a published route or IAP, or assign an
altitude to maintain until the aircraft is established on
a segment of a published route or instrument
approach procedure. For this purpose, the procedure
turn of a published IAP shall not be considered a
AIM 8/5/04
5−4−24 Arrival Procedures
segment of that IAP until the aircraft reaches the
initial fix or navigation facility upon which the
procedure turn is predicated.
EXAMPLE−
Cross Redding VOR at or above five thousand, cleared
VOR runway three four approach.
or
Five miles from outer marker, turn right heading three three
zero, maintain two thousand until established on the
localizer, cleared ILS runway three six approach.
NOTE−
The altitude assigned will assure IFR obstruction
clearance from the point at which the approach clearance
is issued until established on a segment of a published route
or IAP. If uncertain of the meaning of the clearance,
immediately request clarification from ATC.
c. Several IAPs, using various navigation and
approach aids may be authorized for an airport. ATC
may advise that a particular approach procedure is
being used, primarily to expedite traffic. If issued a
clearance that specifies a particular approach
procedure, notify ATC immediately if a different one
is desired. In this event it may be necessary for ATC
to withhold clearance for the different approach until
such time as traffic conditions permit. However, a
pilot involved in an emergency situation will be given
priority. If the pilot is not familiar with the specific
approach procedure, ATC should be advised and they
will provide detailed information on the execution of
the procedure.
REFERENCE−
AIM, Advance Information on Instrument Approach, Paragraph 5−4−4.
d. At times ATC may not specify a particular
approach procedure in the clearance, but will state
“CLEARED APPROACH.” Such clearance indicates
that the pilot may execute any one of the
authorized IAPs for that airport. This clearance does
not constitute approval for the pilot to execute a
contact approach or a visual approach.
e. Except when being radar vectored to the final
approach course, when cleared for a specifically
prescribed IAP; i.e., “cleared ILS runway one niner
approach” or when “cleared approach” i.e., execution
of any procedure prescribed for the airport, pilots
shall execute the entire procedure commencing at an
IAF or an associated feeder route as described on the
IAP chart unless an appropriate new or revised ATC
clearance is received, or the IFR flight plan is
canceled.
f. Pilots planning flights to locations served by
special IAPs should obtain advance approval from
the owner of the procedure. Approval by the owner is
necessary because special procedures are for the
exclusive use of the single interest unless otherwise
authorized by the owner. Additionally, some special
approach procedures require certain crew qualifications
training, or other special considerations in order
to execute the approach. Also, some of these
approach procedures are based on privately owned
navigational aids. Owners of aids that are not for
public use may elect to turn off the aid for whatever
reason they may have; i.e., maintenance, conservation,
etc. Air traffic controllers are not required to
question pilots to determine if they have permission
to use the procedure. Controllers presume a pilot has
obtained approval and is aware of any details of the
procedure if an IFR flight plan was filed to that
airport.
g. Pilots should not rely on radar to identify a fix
unless the fix is indicated as “RADAR” on the IAP.
Pilots may request radar identification of an OM, but
the controller may not be able to provide the service
due either to workload or not having the fix on the
video map.
h. If a missed approach is required, advise ATC
and include the reason (unless initiated by ATC).
　
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