.
At the time of that crash, just after the L-1011 entered service, we in Flight Test were quite interested in it...

We determined the best fix for the problem was an aural as well as visual indication that the autopilot had changed to control-wheel steering mode.
The beep alerted the flight crew.
As for parts of that airplane being reused... from the photos we had of the crash, there was little of anything major not destroyed. The galley would be scrap metal.
The story of ghosts on planes with recycled parts was probably just an urban myth begun by someone at Eastern.