1.   Controllers were also watching a slightly lower than expected flow of freon in one of two systems that cool the shuttle through tubing in its open payload bay doors.

2.   Engineers on Friday were analyzing a problem in one of two critical coolant loops for the payload bay doors.

3.   Hey, can anybody open these pod bay doors?

4.   Normally, both cargo bay doors are kept wide open to let heat escape from the shuttle.

5.   Once in orbit, the craft will open its payload bay doors and its cargo satellite will slide out to be released in orbit.

6.   The ambulance bay doors hissed open.

7.   The shuttle Endeavour suffered damage to its left payload bay door during weekend preparations in Florida.

8.   Another sailor, Sergei Preminin, finished the job but died after bay door jammed, trapping him inside, Belikov said.