If you're not sure who Dick Kohrs is, check out the
Richard H. Kohrs Oral History on the NASA website. He was the Chief of the System Engineering Division and also went on to be an integral part of the Space Shuttle program.
In this phone call, EECOM Sy Liebergot calls Kohrs partially to vent about his inability to get a General Electric contractor to pull some information about hot attitudes - despite promising to have them hand-carried to Sy before the mission - but primarily to have the Systems Engineering division run some data for him since GE "flubbed the dub".
Although you don't hear it on this loop, during the call, FLIGHT Kranz - who apparently was listening in on Sy's loop - hands over control to the AFD and heads over to SPAN to grumble at the CSM engineer, Bill Blair. Bill relays this to Sy later on.
Link:
https://apolloinrealtime.org/13/?t=051:30:21&ch=16