Someone is always pilot in command.
Being pilot in command doesn't necessarily mean one will experience the greatest burden in enforcement action; it's a little more complicated than that.
Who will suffer enforcement action? Get very, very specific, and we'll have a place to start.
There is no issue at hand to speak of. It is just a question. I have heard a few different versions of who will suffer enforcement action, as you can see from the comments mentioned above, and I am just curious as to what the black and white answer is. I do realize that there is always a PIC, but will the Person Manipulating the Controls be the one to take the brunt of the enforcement action in the event that something happens? Let's use the aircraft that was mentioned above-King Air 200. The 200 is a single pilot airplane but many P.91 companies operate it with a 2 pilot crew. Let's say that the pilot in the left seat/pilot flying is a 12,000 hour pilot that flies now days in the right seat of Citations and Hawkers for a living but once a week he fills in as a part time pilot for this company. He has all of the proper ratings-Commercial, Inst, Multi. The pilot in the right seat is a 13,000 hour pilot that flies full time for this company and he has his ATP. If there is an error during any phase of the flight, from engine start up to engine shut down, who would be the one responsible for the aircraft in the eyes of the FAA? As we all know, something can happen at any time, such as smack a fuel truck with a wing and bend the wing or hit a taxi light on a taxiway that is covered in ice in New England or even something major such as a crash where 1/2 of the people on board are killed. If the FAA FSDO is dispatched out to cover an accident, the FAA has to have some guidance as to which donkey to pin the tail on. I do not believe that the FAA has the pilots draw straws and whoever chooses the short straw loses. Is it all based off of who is listed on the company paperwork as PIC? Is it based off of the name of the PIC when the flight plan was filed on FLTPLAN.COM? Is it based off of experience or ratings? Is it based off of who had their hands on the controls when the issue happened? As you can see from above, there are many rumors and different beliefs out there as to what would happen. Why is there no black and white? I can not believe that the regs consist of 1,000 pages of fluff but this is not spelled out. I have searched the Internet from top to bottom and I have read a few stories as to Joe Blow said this or Tom John said this but I can not find THE ANSWER!
Hope this helps! I appreciate your time!