At 1:25 AM Phoenix time (0825 UTC), it is T-Minus 30 minutes.and counting.
T-minus 20 minutes.
No issues. Weather is good. Automatic launch sequence set to start at T-minus 10 minutes.
T-minus 14 minutes, and final poll scheduled for T-minus 13.
“Clear to proceed with terminal count”
T-minus 12 minutes. The International Space Station (ISS) is over Florida now.
T-minus 10 minutes.
Dragon on internal power at T-8 minutes.
Falcon and Dragon on internal power.
T-4 minutes. Some fog rolling through.
Lox topping terminated. FTS armed. T-3.
“Go for launch”.
Flight computer operating at T-60 seconds.
Engines had started and then shut down.
Engine 5 registered high pressure, causing the abort.
Next attempt would be three days from now.
Falcon 9 is in safe mode.
“72 hour turn around”.
The launch would be at 2207 UTC on 22 May. See the article at NASASpaceFlight.com for details.