National Aeronautics and Space Administration

“ CAIN: "And folks, listen up again on the flight loop, no, no phone calls off site, outside of this room, our discussions are on these loops on the recorded DVS (digital voice communications system) loops only. No data, no phone calls, no transmissions anywhere into or out." ”

“ MMACS, tell me again which systems they are for.
KLING: That's all three hydraulic systems, it's, two of them are to the left outboard elevon and two of them to the left inboard
CAIN: OK, I've got you.
SARAFIN: Flight, Guidance, we're processing drag with good residual.
CAIN: Copy. Thank you.
(long pause, silence)
GC (Ground Control Bill Foster) : Flight, GC.
CAIN: Go.
FOSTER: Your air to grounds are enabled for the landing count.
CAIN: Thank you. GNC, Flight.
SARAFIN: Flight, GNC.
CAIN: Everything look good to you, control and rates and everything is nominal, right? ”

“ CAIN: Lock the doors. (Make sure no data enters or leaves the room. This is the first sign of a realization something was wrong)
FOSTER: Copy.
CAIN: FDO, do you have any tracking.
JONES: No, sir.
MOD (Mission Operations Representative Phil Engelauf) : Flight, MOD. On the flight loop.
JONES: Flight, FDO.
CAIN: Go.
JONES: My C-bands have not acquired anything, we are only acquiring false locks at this time.
CAIN: I copy, FDO.
(pause)
CAIN: OK, all flight controllers on the flight loop, we need to kick off the FCOH (flight control operations handbook) contingency plan procedure. ”