M-B Re ‘tarmac the entire area’.
Simpler still, for crews to subtract 90m from the lading distance available and plan accordingly.
Any suggestion that a runway change was being planned after the landing?
Potential for reversed LOC beam during roll out.
Any history with 777 of autothrust disconnect problems after autoland?
Potential for one engine to accelerate to a higher thrust level and contribute to a lateral deviation.