The damage to the Apollo 13 service module that caused oxygen tank 2 to rupture almost certainly happened well before launch during ground testing. See https:/

The damage to the Apollo 13 service module that caused oxygen tank 2 to rupture almost certainly happened well before launch during ground testing. See https://nssdc.gsfc.nasa.gov/planetary/lunar/ap13acc.html https://nssdc.gsfc.nasa.gov/planetary/lunar/ap13acc.html