Kit Id: 120

Dual Outflow Valve Install

Control of both outflow valves, coupled with new nose cone vent, helps minimize pressurization surges. Outflow valves are controlled to close at a rate that insures smooth initial pressurization of cabin for improved passenger comfort. Models 681, 685, 690.

Issue Date

April 13, 1973

Effectivity

  • 681
  • 685 (S/N 12000 THRU 12039)
  • 695