11. The second crew member wore a spacesuit as a precaution against accidental descent module depressurization . 12. There are several large depressurization valves located near the top of the reactor pressure vessel. 13. McArthur was barely outside when he saw the cap for a shuttle depressurization valve floating away. 14. McArthur was barely out when he saw the cap for a shuttle depressurization valve floating away. 15. After the pilot became unresponsive during a flight from Greater Rochester International Airport, cabin depressurization . 16. No mystery, but a phenomenon with a rather sinister-sounding name : depressurization combustion reentry. 17. A cap for a depressurization valve floated away moments after Bill McArthur emerged from space shuttle Discovery. 18. Explorer 32 suffered a depressurization which led to battery failure, at which point it ceased functioning. 19. The aircraft ( a DC-8 ) suffered a depressurization problem and had an emergency landing. 20. Reinforcing the cockpit door, for example, could damage an aircraft in case of rapid cabin depressurization .