The complete instructions how to remove the oven door you can find in the "
Use and care" manual on page 14. Also the
door break down diagram could help you too.
Put the door on a flat surface (face down) and remove the screws from the inner side of the door. Try to remember which screw where goes

.
Do not worry about "flying" parts - it's not going to happen.
- The part number for the inner door glass
AP2929084
- Here are the break down diagrams for the Whirlpool oven
Model GBS277PDQ7
Good luck.
Gene.