Cessna 172R, Operating Handbook

Page: 475 / 500

CESSNA
MODEL 172R
SECTION 9
-
SUPPLEMENTS
SUPPLEMENT
19
-
FAA APPROVED
SECTION
4
NORMAL PROCEDURES
OPERATION
Normal operating procedures are
outlined
in the KLN
94
GPS
Pilot's Guide, P/N 006-18207-0000, dated September 2000 (or later
applicable revision).
A
KLN
94 Quick Reference,
P/N 006-18228-
0000,
dated August
2000
(or later applicable revision) containing an
approach sequence, operating tips and approach related messages
is intended as well for cockpit use
by the pilot familiar with KLN 94
operations when conducting instrument approaches.
AUTOPILOT COUPLED OPERATION
The KLN
94
may
be coupled
to the
KAP
140
autopilot by first
selecting
GPS
on the NAV/GPS switch. Manual selection of the
desired track on the pilot's DG heading bug is required to provide
course
datum
to
the KAP 140 autopilot. (Frequent
course datum
changes
may
be
necessary,
such
as in the
case
of flying a DME
arc.) The autopilot approach mode (APR) should be used when
conducting
a coupled
GPS
approach.
NOTE
NAV or APR coupled DME arc intercepts can
result in
excessive overshoots (aggravated by high ground speeds
and/or intercepts from inside the arc).
APPROACH
MODE SEQUENCING AND RAIM PREDICTION
A
WARNING
FAMILIARITY WITH THE
EN ROUTE OPERATION
OF THE KLN 94 DOES NOT
CONSTITUTE
PROFICIENCY
IN APPROACH OPERATIONS. DO
NOT ATTEMPT APPROACH
OPERATIONS IN
IMC (INSTRUMENT
METEOROLOGICAL
CONDITIONS) PRIOR
TO ATTAINING
PROFICIENCY
IN THE USE OF
THE KLN 94.
Dec 30/00
S19-15