He noticed then that an emergency bulkhead had closed off access to the port nacelle.

"I wouldn't recommend keeping the emergency bulkheads open too long," she said.

When it had been opened to space, emergency bulkheads had sealed and locked into place.

Without the force fields, they would have to manually close the emergency bulkheads to seal off compromised areas of the ship.

The emergency bulkhead emerged from the wall and closed quickly as the flood raced toward it.

Check all emergency bulkheads along the way, make certain they're holding.

Far towards the bow I heard the crinkle of emergency bulkheads snapping shut.

"And all the emergency bulkheads on the ship have been sealed shut."

Sonya glanced down the corridor away from the emergency bulkhead they'd just dropped.

Kieran nodded and followed her, only to find that another emergency bulkhead had been dropped.