john6016
I can imagine the loss of one support rod would place an additional load on the bearings that may lead to eventual failure, but not an instantaneous failure.
Would this be possible:
1. Holding pin of suspension bar pops out in flight (possibly due to improper install)
2. This allows transmission to move a little in the vertical axis
3. This causes engine input shaft bearings to experience massive side loads, leads to failure of bearings.
4. Engine input shaft start to wobble causing inter-meshing of gears
5. Transmission produces metal causing failure of epicyclic
6. The rest same as L2 (REDL)