Did Advance Auto Parts Inc. (NYSE: AAP) just have a good or bad quarter? The 3.1% increase in comparable-store sales, after four straight quarters of declines, certainly suggests the company is starting to generate traction with its turnaround plans. On the other hand, the sales figures were flattened by a couple of non-recurring factors, and the adjusted operating margin decline to 6% from 7.7% in the same period last year says management still has a lot of work to do. Let’s take a closer look at the earnings.