212Man,
Thank you for the details on the CV/FDR and the generator arrangement.
The regulatory agencies frown on "g" switches and promote using parameter driven logic like rotor rpm and oil pressures to provide the shutdown logic. I was wondering if the 92 may have used a combination of these type of indications which might have allowed the sequence of events to meet the logic and command the recorder to shut down. Since they have a "g" switch, the logic based approach would not be needed.
HC,
The recorders stopped 1 minute before the call that they were ditching. I doubt anything occurred at this time which could have tripped the "G" switch.
The Sultan