According to NASA, Apollo 13 seem to be the smoothest flight till the first 55 hours and 46 minutes, nine minutes after the TV broadcast about the living in spacecraft in zero gravity oxygen second tank just exploded, and first tank damaged while the explosion [1]. 200,000 miles far away from the Earth Apollo 13 crew members were stuck with no electricity oxygen and water, to
save energy they relinquish to complete the mission. So on the can survive for more time and try to return back to earth.
The technical problem leads to Apollo 13 mission to turn into failure mission. an oxygen tank got blow in order misfortune, its drain tube took an incorrect position so it wouldn't run out after being filled during the CDDT, by turning on its fans and heaters the tank became desolated, the thermostatic switches weren't designed for the GSE power load and fused shut, the tank hit enormous high temps causing the Teflon insulation on its wires to char off, and at 200,000 miles' distance the tank burst , the reason was that two of the now-bare wires caught fire and this fire caused a sharp increase in the pressure what leads the tank to burst .
one way to survive and return back to the earth. The service module, the only replaceable source for power was the lunar module. The command module resources had to be protected for the vital re-enter operation. And so the lunar module became the lifesaver for Apollo 13. Likely, the loss of oxygen from the remaining tank was slow enough that to avoid power for about two hours. This was enough time to evaluate options and get prepared for a quick return to the Earth. The crew then powered down the command module and then they powered up the lunar module for returning home