Jackscrew n. : A jack in which a screw is used for lifting, or exerting pressure. See Illust. of 2d Jack, n., 5.

Example:
I am looking for a documentary of Alaska Airline Flight 261?

Taxonomy
jackscrew, jackscrews, jack, screw jack, screws, free encyclopedia, connector, self-locking, scale, heads, search, scissors, locomotive, commonly used, car, compressive force, tension force, Acme thread.

Defination from the web:
jackscrew's compressive force is obtained through the tension force applied by its leadscrew. ... For instance, the failure of a jackscrew on a McDonnell Douglas MD80 due to a lack of grease resulted in the crash of Alaska Airlines Flight 261 ...