Aeronautical Information Manual (AIM), page 361

Index   360 -- Page 361 -- 362



b. If a feeder route to an IAF begins at a fix located

along the route of flight prior to reaching the holding

fix, and clearance for an approach is issued, a pilot
should commence the approach via the published
feeder route; i.e., the aircraft would not be expected
to overfly the feeder route and return to it. The pilot
is expected to commence the approach in a similar
manner at the IAF, if the IAF for the procedure is
located along the route of flight to the holding fix.

c. If a route of flight directly to the initial approach
fix is desired, it should be so stated by the controller
with phraseology to include the words "direct . . . ,"
"proceed direct" or a similar phrase which the pilot
can interpret without question. When uncertain of the
clearance, immediately query ATC as to what route of
flight is desired.

d. The name of an instrument approach, as

published, is used to identify the approach, even

though a component of the approach aid, such as the

glideslope on an Instrument Landing System, is

inoperative or unreliable. The controller will use the

name of the approach as published, but must advise

the aircraft at the time an approach clearance is issued

that the inoperative or unreliable approach aid
component is unusable, except when the title of the
published approach procedures otherwise allows; for
example, ILS Rwy 05 or LOC Rwy 05.
e. The following applies to aircraft on radar
vectors and/or cleared "direct to" in conjunction with
an approach clearance:

1. Maintain the last altitude assigned by ATC
until the aircraft is established on a published
segment of a transition route, or approach procedure
segment, or other published route, for which a lower
altitude is published on the chart. If already on an
established route, or approach or arrival segment, you

may descend to whatever minimum altitude is listed
for that route or segment.
2. Continue on the vector heading until

intercepting the next published ground track

applicable to the approach clearance.

3. Once reaching the final approach fix via the
published segments, the pilot may continue on
approach to a landing.

4. If proceeding to an IAF with a published
course reversal (procedure turn or hold-in-lieu of PT
pattern), except when cleared for a straight in
approach by ATC, the pilot must execute the

procedure turn/hold-in-lieu of PT, and complete the


5. If cleared to an IAF/IF via a NoPT route, or
no procedure turn/hold-in-lieu of PT is published,
continue with the published approach.

6. In addition to the above, RNAV aircraft may
be issued a clearance direct to the IAF/IF at intercept
angles not greater than 90 degrees for both
conventional and RNAV instrument approaches.
Controllers may issue a heading or a course direct to
a fix between the IF and FAF at intercept angles not
greater than 30 degrees for both conventional and
RNAV instrument approaches. In all cases, control-
lers will assign altitudes that ensure obstacle
clearance and will permit a normal descent to the
FAF. When clearing aircraft direct to the IF, ATC will

radar monitor the aircraft until the IF and will advise

the pilot to expect clearance direct to the IF at least 5

miles from the fix. ATC must issue a straight-in

approach clearance when clearing an aircraft direct to

an IAF/IF with a procedure turn or hold-in-lieu of a

procedure turn, and ATC does not want the aircraft to

execute the course reversal.

Refer to 14 CFR 91.175 (i).
7. RNAV aircraft may be issued a clearance
direct to the FAF that is also charted as an IAF, in
which case the pilot is expected to execute the
depicted procedure turn or hold-in-lieu of procedure
turn. ATC will not issue a straight-in approach
clearance. If the pilot desires a straight-in approach,
they must request vectors to the final approach course
outside of the FAF or fly a published "NoPT" route.
When visual approaches are in use, ATC may clear an
aircraft direct to the FAF.

1. In anticipation of a clearance by ATC to any fix pub-
lished on an instrument approach procedure, pilots of
RNAV aircraft are advised to select an appropriate IAF or
feeder fix when loading an instrument approach procedure

into the RNAV system.

2. Selection of "Vectors-to-Final" or "Vectors" option for
an instrument approach may prevent approach fixes loc-
ated outside of the FAF from being loaded into an RNAV
system. Therefore, the selection of these options is discour-

Arrival Procedures 5-4-25

Page 361 of the Aeronautical Information Manual (AIM.pdf)
AIM: Official Guide to Basic Flight Information and ATC Procedures

Index   360 -- Page 361 -- 362