019:19:14 BOOSTER reports to FIDO Greene that S-IVB is tumbling out of control

[MadDogBV]

The BOOSTER engineer (as yet unnamed) reports to a bemused FIDO Jay Greene that it's no longer possible to command to the S-IVB to change its trajectory, and both the guidance platform and computer on board have broken down. He delivers this with report with a demeanor not unlike that of someone whose car has just broken down for the last time.

Later, he reports this to SELECT who is already having difficulty calculating its trajectory due to the noisy Doppler data. They're even more thrilled to discover that the APS (ascent propulsion system) thrusters are still firing and producing rates.

Link: https://apolloinrealtime.org/13/?t=019:19:14&ch=20