Honeywell BENDIX/KING KLN 90B, Installation Manual, Page: 25 / 152

BENDIX/KING KLN 90B
Rev 5, April/2003 10521I05.TDC Page 1-19
GPS APR, ARM/ACTV Switch/Annunciator
The KLN 90B requires a switch/annunciator for arming, disarming, or deactivating the approach
mode. It will provide remote annunciation of ARM and ACTV and provide a momentary switch
function to arm, disarm, or deactivate the Approach Mode and change the CDI scale factors.
LIGHTING Honeywell P/N
28V 031-00785-0766
14V 031-00785-0767
5V 031-00785-0768
(Eaton Series 582)
D. NAV/GPS Switching
Installations in which the outputs from a KLN 90B and an existing navigation system are
being switched onto a common indicator will require some remote relay switching that is
controlled by the NAV/GPS switch/annunciator.
E. Straight TNC antenna Connector
The part number for a straight connector for the KA 91 or KA 92 antenna connection is
030-00134-0000.
1.7 LICENSE REQUIREMENTS
None.
1.8 RECOMMENDATIONS FOR IFR APPROVAL
1. Aircraft Logbook Entry
2. Aircraft Installation Requirements
The following interface functions were not required for a VFR KLN 90 but are required for
an IFR’d KLN 90B installation.
TSO’d Antenna
The antenna must be a TSO’d KA 91, P/N 071-01545-0200 or KA 92 P/N 071-01553-
0200. If the P/N of the KA 91 is not available, it may be identified by the serial number as
the TSO’d antennas have a five digit serial number. If the antenna is a non-TSO’d KA 91,
P/N 071-01545-0100, and the KLN 90B is a modified KLN 90, the antenna is eligible for
exchange as part of the upgrade program.
x
Nav Instrumentation
The navigation information (D-Bar, Nav Flag, and To-From) must be displayed on an
instrument in the pilot’s panel.
Electromechanical indicators are capable of displaying the variable scale factors of
enroute, terminal, and approach modes. If the NAV information is displayed on an EFIS
system, it must be capable of displaying variable D- Bar scaling required for GPS
approaches. This may require a modification to the EFIS system. (Refer to
section 1.5
for a list of typical Nav indicators).