EZY 737 300 on approach
I was a returning from schiphol the other day on EZY and quite near to the front. On finals to Liverpool I heard a loud siren from within the cockpit similar to the whoop whoop which was followed by engine rpm increase. Is this normal on this aircraft type? For info, gear was still up and alt was probably 1000 or so.
I'm just curious as the cabin crew member who had been in the cockpit for some 10 mins appeared a minute or so later looking somewhat flustered. As a passenger it did make me a little nervous as I've never heard this noise before (cockpit door was closed) although I didn't hear any verbal alert after the siren.