Cessna 172S Pilot Operating Handbook page 180

SECTION 9 - SUPPLEMENTS
SUPPLE M E NT 1 9 - FAA APPROVE D
Honeywell's Preflight, Version 2.0 or later comp uter based
prediction p rogram may be used for the RAI M p rediction.
Alternate methods should be submitted for approval in
accordance with Advisory Circular AC90-96.
I
g. The aircraft m ust have other approved navigation equipment
appropriate to the route of flight i nstalled and operational.
E M E R G ENCY P RO C E D U R ES
There are no changes to the basic airplane emergency
procedures when the KLN 94 G PS is installed.
1 . If the KLN 94 G PS information is not available or invalid, utilize
remaining operational navigation equipment as req uired.
2. If a "RAIM NOT AVAILABLE" message is displayed while
conducting an instrument approach, terminate the approach .
Execute a missed approach if req uired.
3. If a "RA I M N OT AVAILABLE" message is displayed in the e n
route or terminal phase o f flight, conti
KLN 94 or revert to an alternate means of navigation appropriate
to the route and p hase of flight. When continuing to use the KLN
94 for navigation, position must be verified every 1 5 minutes
as required by applicable country's operatin g rules) using
another IFR approved navigation system .
4. Refer t o t h e KLN 9 4 Pilot's G uide, Appendices B and C, for
appropriate pilot actions to be accomplished in response to
annunciated messages.
8 1 9 - 1 4
N OTE
S E CTION 3
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