Near the start of the episode, DiNozzo STAPLES the edited image of Abby onto his cubical wall. But later when Abby notices the picture and DiNozzo removes it, it is TAPED on instead, you can clearly see the tape on the back of the image, even putting his hand over it to hide it.
About 32 Min in: The way the GFCI was Tripped and Burnt.
Abby describes the melting point of a metal as "1900 degrees Kelvin or 3000 degrees Fahrenheit". Abby, as a scientist, would know that the Kelvin temperature scale is measured in Kelvins not degrees.
According to her VISA Adriana is born March 16 1981, what would result in her being 29 years old at the original air date. But in the argument with her father she claims to be 24 years old.