Offshoreigor,
Everything has been done except the ICP check. I guess the 1S1 is fitted on the S76 A + or A ++ - I have not flown the beast for ages. From the previous posts I understand that for some types the RFM provides a procedure where the MAUM can be reduced to make up for engine below specs. This may be the case for these S76 versions but not for the 365N, so the power check may be a go no go figure.
Cheers
ATN