Underfire: 2 UAB's one on the FDR and one on the CVR. Assuming they are wet then they will be going off, but if covered by debris the range will be limited.
I'm starting to wonder... A few months ago the TSA in the US decided they had some authority to start inspecting part 145 repair stations at or near US airports. It would not take more than a few min. for a MX person to disable the UAB's and the ELT on an aircraft.