Example Approach: Off-Airport Navaid - Honeywell KLN 900s Pilot's Manual

6.1.5 Example Approach: Off-Airport Navaid

An approach that is quite common is an approach that is
based on an off-airport navaid. An example of this is the
VOR RWY 22 approach to Clovis New Mexico Municipal
airport, KCVN. To fly this procedure as published use the
following steps and refer to figure 6-17 for the procedure.
For this example assume that the aircraft is approaching
from the Northeast going Direct-to the Clovis airport with
no active flight plan.
1. Load the approach into the flight plan as described in
section 6.1.1. In this case there is only one IAF so the
KLN 900 does not present the option for you to select an
IAF. In this example, there is no active flight plan to begin
with so the KLN 900 will ask to add the airport and the
approach to FPL 0 (figure 6-18).
2. Approaching the area Air Traffic Control (ATC) tells
you to go direct-to the TXO VOR and clears you for the
approach to KCVN. This is easy to do from the Super
NAV 5 page by pulling out on the right inner knob and
scanning through the active flight plan by turning the inner
knob. Once TXO-i is displayed in the scanning window
(figure 6-19), press D and then E to initiate a direct to
operation to the TXO VOR.
3. At a distance of 4 NM to the TXO VOR, the KLN 900
will give the following message:
IF REQUIRED SELECT OBS
This message provides a reminder that to fly a course
reversal the OBS mode needs to be selected. Note from
the approach chart that there is a No Procedure Turn
(NoPT) Arrival Sector for this approach. If you are
approaching TXO within the indicated area there is no
need to perform a course reversal and you need to ignore
this message. The NoPT sector is not stored in the data-
base so it is not possible for the KLN 900 to know if a
course reversal is required or not; as a result, the KLN
900 will always give this message whenever a waypoint
could be used for a course reversal. The KLN 900 will
transition to the approach mode when 2nm from the
IAF/FAF. It will then sequenced from the FAF to the MAP
at the FAF.
If however, you are approaching from any other direction
a course reversal is required and the OBS mode will need
to be selected. If the OBS mode is not selected before
reaching TXO, then the KLN 900 will automatically
sequence to the missed approach point. This is not desir-
able when performing a course reversal so the OBS
mode must be selected before reaching TXO.
NOTE: The KLN 900 will only remind you to select OBS
mode if the IAF is the active waypoint. Therefore if a
course reversal is required, make sure the IAF is the
selected waypoint.
35.2 oq
KCVN
xy-«} |
165 uv
áà0:13|
ûü227^|
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6-10
Figure 6-17
|V22-KCVN
|PRESS ENT
|TO ADD KCVN
|AND APPR TO
|FPL 0
| APPROVE?
ent CRSR
Figure 6-18
KCVN
RW22
|
TA87
TXO
Q54
Q55
TXOì
Figure 6-19
Rev 2