Nacelle pylon
A nacelle pylon, also known as a warp pylon or a nacelle strut, was a large support structure that connected a warp nacelle to the hull of a starship. A nacelle pylon housed the systems that directly linked a warp nacelle to a starship's warp core.

In an alternate 2263, the  was engaged in battle with Krall and his army of Swarm drones above Altamid. Immediately overwhelmed, they attempted to flee, but the drones managed to sever both nacelle pylons from the engineering hull before they could jump to warp. ()

While attempting to break the warp 10 barrier in a holographic  in 2372, Tom Paris reported a fracture in the port nacelle pylon due to subspace torque. Later, after the problem had been corrected, Paris broke the barrier with both pylons secure. ()

In an alternate timeline in 2374, 's nacelle pylon began to buckle as a result of encountering a moving micrometeoroid field while operating without the use of its navigational deflector. ()

External link

Spacecraft components
Deleted and unused material in background