You should be able to see the runway at 300 feet.
4 seconds sound clip from the Airplane (1980) movie soundboard.
You can hear this line at 01:15:57 in the Blu-ray version of the movie.
Quote context
[...]
- Put out all runway lights, except niner.
- Captain, maybe we ought to turn on the searchlights now.
- No. That's just what they'll be expecting us to do.
- I just wanna tell you both, good luck. We're all counting on you.
- All right, now just listen carefully.
- You should be able to see the runway at 300 feet.
- Aim the touch down a third of the way along.
- There's a slight crosswind from the right, so be ready for it.
- If that doesn't stop you, cut the four ignition switches over the copilot's head.
- Do you see us now? You should be able to see the field, now.
[...]