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Old 17th Dec 2012, 13:31
  #35 (permalink)  
safetypee
 
Join Date: Dec 2002
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PJ2 (#30), thanks.
If the obstacle database is enabled
I assume that this depends on the equipment type / manufacturer / version.
For Honeywell EGPWS, the obstacle database appears to be loaded / able to be uploaded in all systems, but “Obstacle alerting is activated by a configuration item in the configuration module”; “This feature is an option, enabled by system configuration selection during installation.” (Pilot’s guide).
“… the obstacle database being accessed by the EGPWC application only if enabled via configuration module option.” (Installation manual).

I have yet to check what equipment this particular aircraft uses and the configuration / options in that system.
However, from discussions with several operators (some time ago), it was apparent that they (operators) and crews were unaware of the status of the obstacle mode configuration in their aircraft (various types) and the validity of the obstacle database.
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