SPECIAL AIRWORTHINESS
INFORMATION BULLETIN
FAA
Aviation Safety
SAIB:
Date:
CE-10-14
January 22, 2010
SUBJ: Navigation
This is information only. Recommendations aren’t mandatory.
Introduction
This Special Airworthiness Information Bulletin advises you of an airworthiness concern regarding
Honeywell/Bendix King Models KLN 35A, KLN 88, KLN 89, KLN 89B, KLN 90, KLN 90A, KLN
90B, KLN 94, KLX 100, KLX 135, KLX 135A, and KLN 900 navigation units.
Background
After production and distribution of the Honeywell’s Cycle 1001 databases (effective date 14-Jan-
2010), it was determined that the data file delivered contained incorrect dynamic magnetic variations
for all terminal and en route waypoint records.
1
1. Cycle 1001 databases downloaded from Wingman Services prior to January 12th, 2010.
2. Cycle 1001 databases on programmed media and received prior to January 12th, 2010.
This issue could lead to confusion and added workload in the cockpit due to misleading navigation
information.
Honeywell has issued Service Information Letter **Urgent Safety Letter** Incorrect Dynamic
Magnetic Variation Data on database cycle 1001 (effective Date 14 Jan 2010). You may obtain this
service bulletin at:
https://www.bendixking.com/wingman/serv … t?docid=D1
8DF21B3-0FFE-5DAB-7132-9FAD7805020E
The Bendix/King by Honeywell website also provides information on this subject and can be
accessed at:
https://www.bendixking.com/wingman/serv … rRoles?pag
e=database_downloads.
Recommendations
We recommend that you refer to the above-referenced service bulletin and website for additional
guidance.