Geoff
You ask
Does anyone know if EC had a Tech Rep for the 332 in UK/ADN and if so was he consulted? Sometimes a good Tech Rep will be a mine of information that can help hard pushed and shift-working maintenance personnel to react appropriately to the first signs of a major defect.
According to the AAIB:
a manufacturer’s technical representative is based in Aberdeen to provide direct support to local operators. This representative was not available in Aberdeen on 25 March 2009 due to a pre-planned commitment.
The AMM however was available and required the epicyclic module to be opened and inspected (squib's 'elephant').