Citation
SERVICE BULLETIN
SB680-34-27
TITLE
NAVIGATION - WIDE AREA AUGMENTATION SYSTEM (WAAS) INSTALLATION
EFFECTIVITY
MODEL
SERIAL NUMBERS
680 (Citation Sovereign)
-0001 and On
NOTE: Cessna-owned or authorized Citation Service Centers are the only facilities that can complete this
service bulletin.
NOTE: The accomplishment of this service bulletin will have no affect on RVSM operations.
NOTE: SB680-34-20 EPIC Phase 5 Software Upgrade must be accomplished prior to or in conjunction with
this service bulletin, or Epic Phase V software must be installed.
REASON
To add the Wide Area Augmentation System (WAAS).
DESCRIPTION
This service bulletin provides parts and instructions necessary to install WAAS.
COMPLIANCE
OPTIONAL. This service bulletin can be accomplished at the discretion of the owner.
A service bulletin published by Cessna Aircraft Company may be recorded as "completed" in an aircraft
log only when the following requirements are satisfied:
1)
The mechanic must complete all of the instructions in the service bulletin, including the intent
therein.
2)
The mechanic must correctly use and install all applicable parts supplied with the service bulletin
kit. Only with written authorization from Cessna Aircraft Company can substitute parts or rebuilt
parts be used to replace new parts.
3)
The mechanic or airplane owner must use the technical data in the service bulletin only as
approved and published.
4)
The mechanic or airplane owner must apply the information in the service bulletin only to aircraft
serial numbers identified in the “Effectivity” section of the bulletin.
5)
The mechanic or airplane owner must use maintenance practices that are identified as acceptable
standard practices in the aviation industry and governmental regulations.
No individual or corporate organization other than Cessna Aircraft Company is authorized to make or
apply any changes to a Cessna-issued service bulletin, service letter, or flight manual supplement without
prior written consent from Cessna Aircraft Company.
Cessna Aircraft Company is not responsible for the quality of maintenance performed to comply with this
document, unless the maintenance is accomplished at a Cessna-owned Citation Service Center.
Jun 25/2010
680-34-27
Page 1 of 8
Cessna Aircraft Company, Citation Marketing Division, P.O. Box 7706, Wichita, KS 67277, U.S.A. 1-316-517-6000, Fax 1-316-517-8500
COPYRIGHT © 2010
