View Full Version : GPWS System?

12th Sep 2010, 19:24
Today's question is, on the 737-700 (especially Southwest Airlines), does the GPWS announce -400, -300, or -200. I've seen many landings and it always goes from 500 to App minimums. Thanks in Advance for the response!

Collin Biedenkapp,
Hopefully, 737-700 Pilot someday

12th Sep 2010, 19:36
You can (pin) program which callouts you wish, so it is different for each airline and even then it can be different between different aircraft.

No idea which ones Southwest uses though.

I heard quite different configurations so far, one was from "radar altitude" at 2500, 1000ft, 500ft, 400, 300, approaching minimums (either 50ft or 100ft above set minimum), 200, minimum, 100, 50 40 30 20 10 which was quite a bit too much, others just do 500ft, approaching minimums, minimums, 50, 40, 30, 20, 10, which i personally like more than the talkative version.

12th Sep 2010, 19:39
I didn't know it was prorgammable! Thanks for quick reply! Could you tell what what the master caution sound sounds like also?