Originally posted by HazelNuts39 ...
What puzzles me is that the mounting platform of the CSMU is bent upwards, i.e. opposite to the inertia forces one would expect.
I've puzzled about how the CSMU/ULB departed, and the only explanation I can come up with is:-
- The 'g' forces at impact were complex, and the initial underside impact caused the the whole SSFDR to be punched up, and at the same time the mass of the CSMU tried to continue forward and to port, resulting in the securing bolts pulling then shearing off.
- Perhaps a further look at the V/S clevis joints damage may help explain it.
That doesn't give a satisfactory explanation as to why the CSMU/ULB left its mount before the SSFDR, unless the tensile strength of the CSMU bolts were less than those of the SSFDR securing bolts.