As you wrote:
"Later, they had a DC8 literally loose number #1 engine (fell-off) at 35,000 feet while flying over Denver, Colorado."
Well sir (angryblackman), the issue of "literally loose (fell off)" as you mentioned and the aircraft was not at "35,000 feet" are slightly different as "I" remember them.
And I "know" that you were not aboard that aircraft.
The aircraft was at 31,000 feet enroute from Dayton, Ohio to San Jose, CA. The aircraft was weight capable of 35,000 but the lower was chosen to the report of light to moderate turbulence at the front range.
Severe clear turbulence was incurred at the front range upon which the #1 engine was "ripped" off along with all the leading edge outboard of #1. Upon separation the wiring bundle was carried over the top of the wing and caused numerous nuisance fire warnings until landing.
It occured about 60 miles west of Denver Stapleton. The leading edge was found the next day and the engine some four months later.
There was no fire, injuries, nor fuel spillage. A very soft landing was made on 17L at DEN.
The record of the event can be found in a public record NTSB report.
There were NO findings against any of the crew NOR were there any against the Kalitta certificate.
Lastly, all three of the crewmembers are college degreed and currently are employed by majors.
So "angryblackman".......any other details you would like to know about that day "sonny" !