I want to know the answer to the following question:
At what airport was Schwarzenegger's jet forced to make an emergency landing in 2009?
All the background I'm provided with is that "Schwarzenegger's private jet made an emergency landing at Van Nuys Airport on June 19, 2009, after the pilot reported smoke coming from the cockpit, according to a statement released by the governor's press secretary.". Is that enough to answer the question?