Where is the CSMU
1) Likely separated from yet located rack just after a/c surface crash
2) Due geometry and weight i guess in grater chances to be near tail parts of similar weight and compatible geometry. (similar geometry?)
3) Buried? Difficult to say!
4) East or West to rack? Use K.I.S.S. approach (Keep It Simple, Stupid)
The one that made Kelly Johnson put an Angel to the skies, flying near
the coffin corner in just 80 days. The legendary U2.