GPWS Test - Missing an alert?

[pacallen 2]

Hello all, First off I'm absolutely loving the NGX (despite having to wait for the -700 haha)! However, I do have a slight issue with the GPWS test audio and suspect that its simply a difference between operators that isn't covered. I used to be a ramper for Southwest and have spent a good deal of time in NG cockpits, and specifically remember part of the test audio for windshear being: "Windshear! Windshear!" (simulated)"Go around! Windshear ahead! Windshear ahead!" (not simulated) Nitpicking I know, but just wondered what the official word was on this :).

[pacallen 2]

Now that the initial flood of forum posts has (somewhat) subsided, *bump* :).

[Tawanda 1]

On the real aircraft that second call is triggered when you test the WXR Radar. Tawanda

[pacallen 2]

Oh, lame, but thanks for the clarification. I guess it makes sense that the GPWS wouldn't be able to predict windshear without a radar :).

[ajacied551 1]

The WINDSHEAR is simulated and not the GO AROUND. For the WINDSHEAR warning to announce from the GPWS you don't need the Weather Radar system, The Weather radar can only see moist in the air. The wind information for the GPWS system comes from the ADIRU (Air Data Inertial Reference Unit). When you perform the GPWS test make sure that the IRS is aligned. At every airline the GPWS test is can be different.