bearfoil, Lonewolf_50,
I thought MAD (in this context...) stood for "Magnetic Anomaly Detection".
I thought it 'could' work for bl**dy great subs with a lot of steel at a few hundred meters depth.
I can't possibly see how it could work for a debris field of largely non-ferrous (non-magnetic) material at 3000+ meters....
But I suppose this already has been mentioned in this thread before.
CJ