Apple Powerbook G4 17in 1.33Ghz. Tiger OS. Airport...

Question

Hi there, For the first time I accidentally dropped my Powerbook from about a foot off the ground and only the side actually impacted with the carpeted floor. It wasn't a strong impact at all however once that happened my airport signal disappeared and the unit doesn't recognize an airport hardware installed anymore. I use the built in airport hardware not an airport card. All my attempts to reacquire the hardware has been futile. Wondering if I need to open the unit up to check for proper connection and how to do it. Thank you.Henry