We are in the same boat but in different ship.
Hi, you are seafarer. Right?
I worked also on a ship. Anchor Handling Tug. I have my transit visa valid for only 96 hours to join my ship in UAE and another transit visa to exit from UAE also valid for 96 hrs. I just entered UAE for only 2 day total. Form airport then travel directly to our ship. But my employer was based in UAE and I worked in that company for 11 months though we never stayed in UAE on land. We sail and travel most of the time whole region of Persian Gulf and the Far East. Did you disclosed in your work history the address of your Principal employer in the US. And it is impossible for me to obtained PCC Dubai. We don't used passport to travel outside the country as a seaman. We used Seaman's book (seaman passport) and all the visa stamped is in Seaman Book not on the passport. My visa was on paper not in the passport and a guaranteed letter for my employer. Besides I just entered UAE for just 2 days to joined the ship and exit to travel back home. But what I have read here in Forum many applicant got rejected because of no PCC though they did not stayed in the country for more than six months.
Just shared Your experience. Waiting for your reply.