Very bizarre. The image and accompanying text refer to the airplane, however the form beneath it refers to a on-bedroom flat (that said, I'm sure IO540 will be around in a minute telling us that a TB20 can, in fact, be used as a one-bedroom flat
).
I suggest you give the lawyer whose phone no is at the bottom of the page (preface it with 0049 and drop the leading zero) a call to find out.
PS: the text says nothing about condition of the a/c.