Southwest Flight 209 crash report summary:

It has been determined that pilot error was the cause of the crash that killed all 126.3 onboard.

Pilot did not twiddle flight control, resulting in the AP CWS maintaining pitch until the aircraft stalled 1.5 minutes after taking off. Only a brief communication between the pilots was recorded:

10:32:01 pm --  Pilot: Bloody hell, this piece of ....

10:32:05 pm -- Copilot: Twiddle, twiddle!

10:32:07 pm -- Pilot: What?

10:32:09 pm -- Copilot: Twiddle. You might need to twiddle. (stall warning horn in background)

. . . . . . .

10:32:18 pm -- Pilot: What?

10:32:19 pm -- <radio static>