TM 1-1510-218-10
3C-147
Course
reversal
and
holding
pattern
procedures at the IAF waypoint are mutually
exclusive. Only one procedure can be enabled on
the Holding Pattern page. To enable the course
reversal, select the ENBL RVS line select on the IAF
Holding Pattern page. This will also automatically
disable the hold. When the hold is enabled while the
course reversal is enabled, the course reversal will
automatically be disabled.
If the pilot elects, or ATC provides, direct
clearance for a NO PT approach, either delete the C
attribute at the IAF, delete the IAF, or perform a
direct-to the FAF to avoid course reversal execution,
as instructed by ATC. This action does not
necessarily result in a straight in approach as when
given radar vectors for final approach. To disable
the course reversal, enter a – on the Flight Plan
page and delete the C attribute at the IAF. If the
course reversal is currently active, the aircraft will
immediately turn inbound, as in holding pattern
termination, and conclude the course reversal.
Additionally, a direct-to any waypoint while the
course reversal is active will terminate course
reversal guidance.
There are three types of course reversals
typically defined within a GPS approach procedure.
Refer to Figures 3C-94, 3C-95, and 3C-96.
1. IAF course reversal.
2. Collocated IAF/FAF course reversal.
3. Extended FAF course reversal.
In the co-located IAF/FAF and extended FAF type
course reversals, the course reversal execution is
actually performed at the FAF waypoint, even though
definition is provided with the IAF waypoint. In these two
cases, the FAF holding pattern and IAF course reversal
execution are mutually exclusive. If a holding pattern is
enabled at the FAF, the course reversal will be disabled.
Additionally, when the IAF holding pattern is disabled
and an extended FAF course reversal is defined at the
IAF, the course reversal to be executed into the FAF will
automatically be re-enabled. This will ensure proper
execution of the procedure turn at the FAF. However, if
a holding pattern has been attached to the FAF and the
H attribute is subsequently deleted to disable the FAF
hold prior to the hold execution, the course reversal
procedure at the FAF is NOT automatically re-enabled.
The operator must access the course reversal definition
at the IAF and re-enable the course reversal to execute
the reversal at the FAF.
Figure 3C-94. Case I: IAF Course Reversal
