I do think that checking the accident in 1985, location, Milwaukee, WI, USA of a DC9 flown by Midwest Express airlines may , (MAY) shed some light on this span air crash.
Definitely some similarities in the accident profile. It was a baby -9, no slats, the PF botched the control inputs according to the NTSB:
AAR-87-01
As I recall, the POI for Midwest Express had never flown a jet, she was a Shorts pilot...