Continue with deburring and primer reinforcement parts 6-B-8-7, -7-1, -6-3, -8-1, -8-2, -8-10, -8-11. Also prepare 6-B-7-2, -7-51 for rearside. Later in the evening all primed areas were sanded and holes cleaned again. All parts installed with clecos. 6-B-6-3 and -8-7 installed with rivets to the firewall.