Deepnight Revelation has been modified to permit most repair and maintenance tasks to be performed using the ship’s repair drones or crewmembers on the hull. This is a laborious task, requiring mobile derricks to be secured to attachment points and work carried out with extreme care. The modification is one of the most expensive features of the ship and whilst necessary for a long mission it is probably the least popular feature of the vessel – at least with crewmembers who have to remove hull plate sections in space using only small mobile derricks and drone-mounted winches.
The ship also has a higher than normal expenditure of supply units, presumably due to it never getting that complete overhaul that ships normally receive. They need to change spares and keep things running.