We've not heard from her for some time.
3 seconds sound clip from the The Hunt for Red October movie soundboard.
You can hear this line at 02:09:02.210 in the Blu-ray version of the movie.
Quote context
[...]
- I appreciate your candor in the matter.
- Perhaps.
- There is another matter, one that I'm reluctant to...
- Please.
- One of our submarines, an Alfa, was last reported in the area of the Grand Banks.
- We've not heard from her for some time.
- Andrei, you've lost another submarine?
- All this way to hide a submarine in a river.
- We're a hundred miles from the nearest naval base, the last place that satellites will ever look.
- I grew up around here. My grandfather taught me to fish off that island right over there.
[...]