First of all, thank you for the responses.
My mistake, the footage IS 24p Advanced and was captured at 29.97. It is in a 23.98 timeline and the video plays in fast motion, audio is normal.
Here’s the odd thing. When I play the self-contained clip in quicktime, it is synced and works fine, the duration is 28:37. When I import it into FCP and watch it in the timeline, the video stops at 23:05 and the audio plays until 28:37. Basically, the video is playing fast and the audio is playing normal speed.
This seems like a quirk since it plays fine in quicktime.
FCP Version 6.0.5, Mac OSX 10.5.5, Dual-Core Intel Xeon.