Technical information

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680, ATA: 34-00
SB Clarified Regarding
Epic Phase 5 Upgrade
Team Sovereign is clearing up the confusion regarding some references used in SB680-34-20 versus what is
displayed in the cockpit for the Epic Phase 5 Software Upgrade.
In the tooling section on page 3 of the bulletin, the P/N 8940408-3 Epic standard database compact disc (CD) refer-
ences the Flight Management System (FMS) Aircraft Database as “SVRGN-094000.“ Operators should be aware
that this is an International Organization for Standardization (ISO) file number. This reference will differ from the
“SVRN-L3” that appears as the aircraft type reference on the PERFORMANCE INIT 1/5 page on the FMS screen.
In addition, the 8940408-3 CD has a file P/N 60000696-001-06 listed as a performance database in the accomplish-
ment instructions section, Step 21 on page 10 of the bulletin. This number is used to verify that the correct aircraft
database is loaded by cross-checking the Software Configuration Management System (SCMS) on the display unit
(DU) #3. Operators can access the performance database number by moving and clicking the cursor on the drop
down menu arrow to the right of the MAP button.
Questions, please contact:
Team Sovereign
316-517-1695 (Direct)
1-877-683-7344 (WATS)
[e-mail]
525, 525A, 525B, 525C, ATA: 72-00
Williams International has posted engine service bulletins and service letters on its website. The website offers
Williams service documents for viewing without a userid or password required. Operators can access the docu-
ments using the following procedure:
1. Go to Williams International homepage at http://www.williams-int.com
2. Move the cursor over the Product Support tab to display a selection box
3. Click on the Ask a Question selection
4. On the Answers page, click on the Service Documents button on the top right side of the screen
5. On the Service Documents page, enter the service document number in the search function, or scroll
down to the desired SB or SL link.
Questions, please contact:
Powerplants Team
1-800-835-4090
316-517-6261 (International)
[e-mail]
Service Documents on
Williams’ Website
Or:
Williams International Hotline
(USA) 1-800-859-3544
(International) 1-248-960-2929
[e-mail]