Update on Prevost Airlock

[BusCrazyinFL]

Found the switch that retracts the airlock. The symbol on the switch is not very distinguishable so if I wasn't really looking for it I would have missed it.

Here are some pics with the lock engaged and retracted:

Button on far right operates the air lock


Here the lock is fully engaged


Here the lock is retracted


This is what the lock mechanism looks like inside the door (for those who may not have ever seen one)