While writing my previous post about commercial launcher woes, I found out that Orbital Sciences will be using the same Wallops launchpad as the ill-fated Conestoga rocket. Conestoga was the first privately-funded launch vehicle. The first Conestoga used surplus Minuteman second stages and had a successful launch in 1982.
The next version of Conestoga to fly was called the 1620 (code for its configuration) and used Scout missile second stages. Its first and last flight was in October 1995. I have no idea why the announcer calls it an automatic failure other than brainlock.
Noise in the guidance system led to multiple unnecessary course corrections until the steering mechanism ran out of hydraulic fluid. This kind of failure also happened with a Delta 3 launch in 1998.
It looks like the range safety kicked in around 1:20 in the video. The solid fuel is still burning, but the boosters are falling straight down. Usually there’s some kind of explosive like a linear shape charge that either knocks off the nozzle or opens the casing on a solid motor.