Question - How do I remove the transmission fluid pan?

I wanted to change the filter and fluid in my Aisin 6 speed auto. I know it's not required but I like to do preventative maintenance on my cars. I had it on jackstands, wheels off, I lowered the subframe without taking it completely off but there was one bolt under the front subframe rail that prevented me from removing the pan. My question is has anyone done this service before and have suggestions as to accessing that one bolt?

Any help would be awesome. If not I will just buy the Bentley service manual.