NASA is still inspecting the engine but early reports, tweeted by both Musk and NASA, state that the chamber pressure on engine 5 was abnormally high, causing the rocket's on-board computer to abort the launch.
Update 7 41 PM EDT: SpaceX has confirmed that the computer triggered an abort at T-10 seconds because something wasn't within limits.
And seven minutes before SpaceX's Falcon 9 was set to launch, an onboard computer triggered an abort, causing the rocket to stand down for the day.
They still aren't sure what caused the computer to trigger the automated abort, but are investigated and will share more when they determine the specific cause.
Early Saturday morning, he was in SpaceX's mission control for the first launching attempt of the Falcon 9 when the computers called a last-second abort, shutting down engines that had already ignited.
The journey of that apprentice Magellan was aborted, but the computer was already mine so there was no turning back.
After the first treatment was completed, the technologist realized that the wrong protocol was on the computer screen and the treatment was aborted.
On Apollo 11, the lunar module's descent was hampered by an overloaded computer, the missing of the mission's intended site on the lunar surface and the distinct possibility of an aborted landing.
