What? Rotten luck. The fuel line's cut.
5 seconds sound clip from the The Secret of NIMH (1982) movie soundboard.
You can hear this line at 00:24:14.883 in the Blu-ray version of the movie.
Quote context
[...]
- I've got to try and stop that thing.
- Wait! You're out of your mind?
- Brisby! Come on. Come along.
- What? Rotten luck. The fuel line's cut.
- Stop it.
[...]