Interesting bit of information I heard about the FDR and Decu's on the C++. Correct me if I am wrong but I was told that there is a water activated switch on the belly of the aircraft that theoretically when activated stops the FDR and DECU's from recording. (preserve last incident data???) Hence if any exceedance did occur after the switch was activated it would not be recorded.
I'm pretty sure that the FDR and DECU's on the Airlog aircraft did at some point stop recording, and that when the aircraft was returned to shore it went through more than float repacking.