How Apollo 13 got home after an explosion in space

Process map by Brian. 18 steps, 2 layers. Tags: space, history, engineering, apollo.

1. Three astronauts: Heading to the Moon, they are asked to stir the oxygen tanks
2. Spacecraft: A damaged wire sparks inside tank 2 and the tank explodes
3. Three astronauts: "Houston, we've had a problem"
4. Mission Control: Is the command module losing power and oxygen?
5. Mission Control: Abort the Moon landing and use the lunar module as a lifeboat
6. Three astronauts: Power down the command module to save battery
7. Spacecraft: Use the Moon lander engine to put the ship on a path home
8. Three astronauts: Breathing air is turning toxic: the filters do not fit
9. Engineers on the ground: Build an adapter from socks, tape and plastic that the crew can copy on the spot
10. Three astronauts: Freezing cold and little water for days
11. Engineers on the ground: Write a new procedure to restart the command module, never done this way
12. Three astronauts: Release the damaged service module and see the damage
13. Spacecraft: Reenter the atmosphere and splash down safely
14. Mission Control: Check the data again

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