Zanzibar's Rings

A galactic crisis: the entire comms system destroyed. No waypoints, no navigation aids, no database access. And how will spaceships in flight get home - or to any destination?
Dolores is stuck in warp with a very dangerous passenger, Pete gets his shuttle back home on manual.

But why does anything in close contact with pure orichalcum fix itself?
Just flying through Zanzibar's Rings solves the problem - as the Federation's Fighters find, when they descend on the Viridian System to take possession of the planets.