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DA 40 Series

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%  Section 34-45 
%  Stormscope System 
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%  1. General 
%  This Section tells you about the Stormscope system that can be installed in the DA 40. Refer to the 
%  manufacturer′s manual for more data about the equipment. 
%  The Stormscope system consists of the following items: 
%  ) Stormscope processor. 
%  ) Stormscope antenna. 
%  2. Description and Operation 
%  The WX-500 is a passive sensor that listens for electromagnetic signals with a receiving antenna. The 
%  antenna detects intra-cloud, inter-cloud, or cloud-to-ground electrical discharges within a 200 nm 
%  radius of the airplane and sends the resulting 'discharge signals' to the processor. The processor 
%  digitizes, analyzes, and converts the discharge signals into range and bearing data. This information 
%  is stored in the storm buffer. 
%  A. Stormscope Processor 
%  The stormscope processor is tray mounted and is located under the passengers' seat. 
%  The avionics bus supplies power to the Stormscope system. The ALT/BAT switch and the AVIONIC 
%  MASTER switch must be set to ON to supply power through the 'WX-500'-circuit breaker to the 
%  Stormscope system. 
%  The processor houses the lightning data acquisition circuitry as well as the circuitry necessary to 
%  process heading information and communicate with the host MFD (Bendix/King KMD 150 or 
%  Garmin GNS 430/530, refer to Section 34-58). All WX-500 functions are controlled through the 
%  MFD. 
%  B. Stormscope Antenna 
%  The Goodrich NY-163 stormscope antenna is located behind the COM #2 antenna. The antenna 
%  is a combined cross-loop and sense antenna. The antenna is sealed against environmental 
%  extremes. You cannot repair the antenna. 

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% Trouble-Shooting % 1. General
% The table below lists the defects you could have with the stormscope system. If you have the trouble % detailed in the Trouble column read across to the Possible Cause column. Then do the repair given % in the Repair column.
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Trouble  Possible Cause  Repair 
Stormscope does not operate.  Circuit-breaker not set. Faulty cables/connectors.  Set the circuit-breaker. Do a test for continuity on each cable. Do a test for short circuit to ground and between cables. Replace defective cables. 

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Doc # 6.02.01 Page 101
Rev. 4 09 Jan 2003

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% Maintenance Practices % 1. General
% This Section tells you how to remove/install the components of the stormscope system. It also tells % you how to test the stormscope system.
% 2. Remove/Install the Stormscope Processor
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% A. Remove the Stromscope Processor %

Detail Steps/Work Items  Key Items/References 
(1)  Remove the passengers' seat.  Refer to Section 25-10. 
(2)  Open the 'WX-500'-circuit breaker. 
(3)  Loosen the screw that attaches the processor to its mounting tray. 
(4)  Remove the stormscope processor from the mounting tray. 

% % % B. Install the Stormscope Processor
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