How accurate are airline baggage scales?

August 8, 2011 6:44:23 PM PDT
Airlines charge plenty for bags you check that weigh more than 50 pounds, but sometimes the scales can be wrong. 7 On Your Side decided to find out how often those mistakes happen.

7 On Your Side checked scales at all three major airports in the Bay Area and didn't find any problems. But now with the help of ABC News and ABC stations across the country, we found scales at airports nationwide don't always give you a fair shake.

Watch this news report in the video player above to see the full story.