Pipe Warp
From The Elite Wiki
An essential warp for most SA / 00A routes, and one which will always feature in the WRs. It opens up a much faster route from the engine room bomb to the bridge, and coupled with the bug throw above allows runners to avoid the stern (helicopter end) of the ship altogether. Warping in the opposite direction, from the boxes room to the stairs, is referred to as the 'reverse pipe warp'.