No, not yet.
5 seconds sound clip from the The High and the Mighty (1954) movie soundboard.
You can hear this line at 00:58:27 in the DVD version of the movie.
Quote context
[...]
- Right.
- Leonard, take a fast fix, let me know our position now and every 10 minutes from now.
- Get back to your passengers. If this thing lets go again, they'll start wondering.
- Tell San Francisco we're experiencing some unusual vibration and to stand by until further advised.
- Do you want to declare an emergency?
- I was just starting to serve the passengers. Should I go ahead?
- Sometimes these things never do get explained.
[...]