For those who have not completed Xenoblade Chronicles, this page or section may contain spoilers regarding the plot. Discretion is advised.
The Face Maintenance Bay is a location in Xenoblade Chronicles. It is located on the third basement floor of Galahad Fortress, and can be reached by taking a lift down from the Preparation Bay. It is a large room with eight Mass-Produced Face units armed with Ether spears mounted on the walls, however they are inactive and cannot be attacked. There is an exit on either side of it, which lead out to where a walkway used to be. Although the ground is very far below - it cannot be seen at all from this height - the party can fall safely from here without dying, although the screen does black out. The party lands without damage at the Silver Wreckage on the Fallen Arm.
The first time it is visited it cannot really be explored, as a cutscene is activated, implying the Story Quest Fiora's Conviction, and showing four security Mechon — the two Defensive Guard Units and the two M94 Guard Units — appearing to apply assistance to Face Nemesis and attack the party. The party members try to evade these by running in the opposite direction, only to be confronted by Face Nemesis, who also attacks. From her, the party attempts to flee onto the walkway, however Nemesis destroys it, causing them to fall to the Fortress Depths.