Custom Kit Finder
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
19730413
Effectivity
681, 690, 685 S/N 12000 THRU 12039