It is used on the Queen Zenobia in the following places:
- Unlocks the door to the Observation Tower from the Storage Room.
- Unlocks the wall safe that is behind the picture in north west corner of the Cabin Corridor 2.
- Unlocks the door to Library 3 from the Adjoining Passage.
- Unlocks the wall safe in the Conference Room.
- Unlocks the wall safe in the Foredeck Interior.
- Unlocks the doors to the Foredeck from the Foredeck Interior.
- Unlocks the door leading to the U-Shaped Corridor 1 from the Freight Platform Lower.