Apollo 12

Astronauts Pete Conrad, Alan Bean, and Richard Gordon were ready to head to the Moon. Rain and heavy clouds hung over their launch pad, but engineers decided they wouldn’t be a problem. So Apollo 12 headed skyward 50 years ago today.
LAUNCH CONTROL: 3, 2, 1, zero, all engines running! Commit, lift off! We have a lift off!
Seconds later, though, something went wrong.
APOLLO 12: What the hell was that? I lost a whole bunch of stuff.
Mission Control lost data, and the systems in the spacecraft went haywire.
APOLLO 12: Okay, we just lost the platform gang. I don’t know what happened, we had everything in the world drop out. ...Fuel cell lights, an A/C bus light, a fuel cell disconnect, A/C bus overload 1 and 2, main bus A and B out.
Without guidance and power, the crew might have had to abort. But 26-year-old flight controller John Aaron saved the day by recommending that the crew flip a little-known switch.
MISSION CONTROL: Apollo 12, Houston. Try S-C-E to auxiliary, over.
That reset the