Text in force at CAR3R-8: from CAR3R-0, effective 15 May 1956. OCR text
Ignition switches shall provide control for each ignition ¢ircuit on each engine. It shall be possible to shut off quickly all ignition on multiengine airplanes, either by grouping of the individual switches or by providing a master ignition control. If a master control is provided, suitable means shall be incorporated to prevent its inadvertent operation.