[Dan O'Connell]

I did some checking, and it can't be 170900, no such block. It isn't 170090 as it survived for some time after that, or 009 which was destroyed by bombing 19 July. It can't be 110900, 090, or 009 either. It also can't be 130900, 090, or 009.
None of the few losses of 262's in the week up to 22 September came even close to your W.Nr.
One of those mysteries I guess.