§ 33.37. Ignition system.
39 words·~1 min read·
/us/cfr/t14/s§ 33.37·A research copy — for the controlling text, always check the official state or federal source. Not legal advice.
Each spark ignition engine must have a dual ignition system with at least two spark plugs for each cylinder and two separate electric circuits with separate sources of electrical energy, or have an ignition system of equivalent in-flight reliability.