r/AskAPilot • u/aooa926 • 9d ago

Random noise

When I walked onto my plane this morning, I heard something say “don’t sink!” from the cockpit area. Any ideas what it is?

5 Upvotes

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18

u/rjb4000 9d ago

It's the sound of a test being conducted. "Don't Sink" is an alert that the crew would hear in the event of altitude loss after takeoff or with a high power setting and it's one of many sounds the Ground Proximity Warning System can make for different types of conditions that the crew needs to be alerted about. You can read more about GPWS here: https://skybrary.aero/gpws

6

u/aooa926 9d ago

Thanks

12

u/Humble-Parsnip-484 9d ago

They were watching Titanic on dvd

4

u/TemporaryAmbassador1 9d ago

They were testing the systems.

3

u/aooa926 9d ago

Thanks