The airplane was equipped with a Flightcom Digital Voice Recorder Clock, DVR 300i. The unit contained a digital clock, was
wired into the radio communications circuits, and could record conversations between the airplane and other radio sources,
ground, or air. The unit was voice activated, and the continuous loop could record and retain a total of 5 minutes of data. The
unit had a nonvolatile speech memory that required a 9-volt backup battery to preserve the speech data. When the unit was located in the wreckage, it was crushed, its backup battery was missing, and it had retained no data.