Is there ATC audio from the Sled Driver Speed Check story? I love this story, like a lot of people, but is it possible to find the actual ATC recording from that story?
Excerpt:

Then, I heard it. The click of the mic button from the back seat. That was the very moment that I knew Walter and I had become a crew. Very professionally, and with no emotion, Walter spoke: &quot;Los Angeles Center, Aspen 20, can you give us a ground speed check?&quot; There was no hesitation, and the replay came as if was an everyday request. &quot;Aspen 20, I show you at one thousand eight hundred and forty-two knots, across the ground.&quot;
I think it was the forty-two knots that I liked the best, so accurate and proud was Center to deliver that information without hesitation, and you just knew he was smiling. But the precise point at which I knew that Walt and I were going to be really good friends for a long time was when he keyed the mic once again to say, in his most fighter-pilot-like voice: &quot;Ah, Center, much thanks, we're showing closer to nineteen hundred on the money.&quot;
Sadly, there likely are no official recordings of this story.

Unfortunately, there was no LiveATC.net archive at the time, and unless there is an accident or incident, audio is not routinely archived by the FAA or NTSB.

Even when you want to request recent data, the FAA warns, "Because air traffic data is routinely destroyed or disposed of in the normal course of business, time is of the essence." (I've seen elsewhere but couldn't find an official source that it can be anywhere from 5-45 days), so even if you could find a date of this event, you wouldn't be able to file a FOI request.