Originally Posted by HeyItsMK

The 764s don't have doors, the only other Suites are on the 350s. But assuming you were on that one, just know that the door mechanism is different on that than the 339s. On the 339s the door is all manually operated, so you slide it open and closed. I don't think I've ever had a flight where someone hasn't used the emergency door release mechanism whenever I've had the privilege of flying on the 339 Suites