Citation
SERVICE BULLETIN
SB680-34-27
E.
Select NAV IDENT.
F.
Select POS INIT. Select LOAD for the GPS position.
(1)
Wait for GPS to become available.
G.
Select POS SENSORS.
H.
Locate the Line Select Key with GPS 1. Select STATUS next to GPS 1.
NOTE: The NEXT Button may need to be used to get the next pages.
(1)
Press the NEXT Button to make sure that the SATELLITES TRACKED entry shows at least
eight (8).
NOTE: It may be necessary to wait up to 10 minutes as the satellite geometry is constantly
changing. It may also be necessary to reposition the airplane away from hangars and
other obstructions to get a better signal.
NOTE: If the GPS is within SBAS coverage, then RAIM is replaced with horizontal integrity
limit.
I.
Select PRED RAIM.
(1)
Select PILOT SEL.
(2)
Type KICT and press the Line Select Key labeled PLACE.
(3)
Type in the current time plus 5 minutes and press the Line Select Key labeled RAIM@TIME.
(4)
Verify the MCDU shows the text "COMPUTING RAIM"
NOTE: The results of the computation will be shown after a short period of time.
(5)
Make sure the results are shown.
J.
Repeat steps D to I for FMS 2 and GPS 2.
13.
Turn the airplane Power off.
14.
Disconnect the airplane battery.
15.
Disconnect external electrical power.
16.
Update the Cessna Model 680 FAA approved Flight Manual (68FM).
NOTE: Look at the configuration codes listed in the applicable supplement and/or in Section 1 of the FAA
Approved Airplane Flight Manual to make sure all changed crew procedures or limitations are
complied with.
A.
Make sure that Supplement 25, Revision 0 or later is inserted into the 680 FAA Approved Airplane
Flight Manual (68FM).
17.
Make sure the flight crew receives the Flight Crew Operations Summary, which shows the operational
changes that are a result of the accomplishment of this service bulletin.
18.
Record that this service bulletin has been completed.
A.
Complete a Maintenance Transaction Report.
B.
Put a copy of the completed Maintenance Transaction Report in the airplane logbook.
C.
Send a copy of the completed Maintenance Transaction Report to: CESCOM C/O Camp Systems
International, 8200 East 34th Street North, Building 1600 Suite 1607 Wichita, KS 67226.
Jun 25/2010
680-34-27
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