There are no screws the screws where used to hold them until the adhesive
dried. The plastic expands and contracts with tempeature and would crack if left in.
You will have to cut the glue between the hull
and the lens. A hacksaw blade with a handle made of tape or seizing wit run through with one person inside and one out pulling back and forth will get them out.
Once out you will need to clean up both surfaces. Take the time to polish the lens as well.
FP used a thin weatherstrip on the inside to keep the adhesive
from leaking out on the inside. Tape off the outside around the lens. You can temporarily screw it in place for this. You may want to add a couple more screw holes prior to reinstalling.
Put a liberal amount of adhesive on the window screw it in place and let it dry for a couple of days. Dress the caulk outside while it's still wet and remove the tape after about an hour. Clean up any excess.
Use a good adhesive, we usually use life seal I beleive. I think 3m 4000 uv would work as well. Dow has an OEM product that sucks.
Remove the screws after two days and fill those holes.
Can't edit on the phone
ment to type seizing wire to cut.