WasNaeMe
It was never the design (idiot?) position that the AFTU would remain on the FWD lower face of the center box where it was seem as potentially vulnerable. It was customer who vetoed the relocation to the upper part of the center box where it was to be protected, on the grounds of cost & ease of maintenance issues.
You seem to suggest relocation was always the intent, with time and cost penalty passed onto the customer.
Could you elaborate?