[Todd Gessel]

Anyone familiar with "gland end" actuators for the main gear doors? I recently had a 'gear up landing' due to mechanical failure of the right main gear door actuator snap ring. It appears the snap ring gave way and the end of the actuator came out of the housing causing all the hydraulic fluid to pump out. I have heard that some later models have what is called a 'gland end' actuator where the end screws into the housing rather than a snap ring holding it in place. My Skymaster is a 1977 337G, normally aspirated, non-pressurized.