Let me understand the roles of the parties involved -
There is an owner of the aircraft that is not you?
You are employed as pilot or operator / manager
If you are the manager then I would look a little closer to home - If someone is paying you to manage their aircraft - then manage it - it's suppliers / third parties / compliance etc - if you are just the pilot (and therefore not the operator) then take this up with the person who has operational control of the aircraft -
Phil