Listen to the full audio of the radio contact between Apollo 13 and Houston Nasa Ground Control at the
moment the probleme was discovered at 55 h 54 min of flight time in a distance of 300,000 k from earth.
This is an original sound file from the Nasa Project Apollo Archive ( = source)
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".. we had a pretty large bang associated with the CAUTION AND WARNING there...."
Photo: Nasa Project Apollo Archive, # AS11-41-6035
Audio on www.DG7YBN.de