Airlock

You’re trapped inside the ship’s airlock and its door controls are malfunctioning. The serene voice of the ship’s computer is calmly reporting the steady drop of oxygen levels as the hatch between you and the dark beyond prepares to open. Your only hope of survival lies with the crew on the other side of an airtight, soundproofed door. For you, the ship’s chief engineer, it's a relatively simple fix but for the rest of the crew, your ship’s inner workings are a mystery. Sucking the last of the airlock oxygen into your lungs, you begin the arduous task of leading your crew through the procedure necessary to free you from certain doom. Can the crew deduce the correct procedure or will your inability to lead their efforts be your undoing? More importantly, how long can you hold your breath?