Provides approved modifications for nose gear and nose gear support structure problems caused by wear, overload conditions, prior AC-43.13 repairs, etc., for all Models.
Provides an approved recognition light installation to increase the visibility of the airplane during flight for the Models 500S, s/n 3076 and later, 680W, s/n 1726 thru 1850, 681, 685, 690, 690A, and 690B, all serial numbers. Two kits are available–one with a pulsing function and one without.
Provides automatic ignition for both engines in case of engine flameout during takeoff and landing on wet runways and during flights in icing conditions. Automatic ignition is not limited to only these conditions; it is available anytime the engine RPM is above 60 percent. Models 680T, 680V, 680W, 681, 690, 690A, 690B.
Provides a means to prevent batteries from overheating and thereby increasing battery life.
Prevents aircraft with long-range fuel systems from venting fuel overboard through wing vents during fueling and taxiing. Models 680T, 680V, 680W, 681.