Guys,
Perhaps I can help. Boeing Helicopters in Philadelphia have been accredited under the DAOS scheme, for at least 18 months now.
To get this, they had to submit a 'DAOS Exposition' that set out their credentials and demonstrated that they met the MoD's criteria. That exposition was examined and 'signed off' by the MAA.
So everything's just fine then...
Best Regards
Engines