Full Idea
The parts of a ship in a warehouse belong to no ship at all, ..and once they are appropriated by another ship they cease to be parts of the original, ..so it seems that the renovated ship (not the reconstruction) is identified with the original.
Gist of Idea
If old parts are stored and then appropriated, they are no longer part of the original (which is the renovated ship).
Source
E.J. Lowe (A Survey of Metaphysics [2002], p.31)
Book Reference
Lowe,E.J.: 'A Survey of Metaphysics' [OUP 2002], p.31
A Reaction
The parts in the warehouse could belong to the original (they might even labelled), but assigning them to a new ship does indeed look like a crucial break in the continuity.