A PSA Airlines Canadiar CRJ-900 on behalf of American Airlines, registration N586NN performing flight AA-5663 from Charlotte,NC to Cedar Rapids,IA, was enroute at FL360 about 40nm northwest of Evansville,IN (USA) when the crew decided to divert to Evansville due to a left hand cracked windshield. The aircraft landed safely on Evansville's runway 22 about 20 minutes later.
A replacement CRJ-900 registration N569NN reached Cedar Rapids with a delay of about 4 hours.
The occurrence aircraft is still on the ground about 20 hours after landing.