SD2 Conversion
The AS350BA can be upgraded to AS350B2 but only by Eurocopter. This would then allow the SD2 modification. The Soloy SD1 conversion for the AS350BA has been submitted to EASA for validation but approval timing is unknown. There are a few Eurocopter facilities converting BA's to B2's using a loaner 1D1 then converting the aircraft to SD2 after sign off.
The Turbomeca 1D1 engine values have dropped since last year most likely due to Soloy putting over 100 700D-2 engines in the field. The Arriel 1B engine may also have dropped due to the upgrade of BA to B2, many of the SD2 conversions went to AS350BA's that were upgraded to B2 configuration.