Slip Termination, Preventable (or STP for short) is a Shaw-Fujikawa Translight Engine failure classification.[1] STP usually results from poor drive maintenance.[1]

It was due to a slip termination that the freighter Horn of Plenty was attacked by the Covenant missionary vessel Minor Transgression. This was one of the events that started the Human-Covenant war.[2]

Some human freighter captains have their own way of translating the acronym: "Screwing The Pooch."[1]


  1. 1.0 1.1 1.2 Halo: Contact Harvest - page 24
  2. Halo: Contact Harvest - pages 23-28