Which sequence accurately describes the exit door disarming procedure?

The exit door disarming procedure is critical for ensuring safety during the operation of an aircraft, particularly in emergency situations. The correct sequence begins with the placement of the pin, which secures the door's emergency exit system and prevents it from being inadvertently activated during pre-flight or in-flight phases. Following the pin, the lever is moved to the disarmed position, which allows for the door to be opened without deploying the emergency slide, an essential aspect during regular boarding and deplaning.

Next, the procedure includes placing the second pin, which is key to ensuring that the emergency slide remains deactivated and secure until it is needed. The final step involves attaching the strap, which serves to further ensure that the door remains in the disarmed position. This sequence minimizes the risk of unintentional slide deployment and enhances overall safety for both crew and passengers. By adhering to this proper order, the crew ensures that all safety measures are effectively in place prior to flight.