Here are the details.
Original W2 had a higher amount ($6400) - This was a mistake by the employer.
Corrected W2 had the correct contribution amount ($3400)
In the turbo tax interview, there was page which asked for "your contribution" where I think I duplicated the amount which resulted in the amount showing as excess in 5329. There was actually no excess contribution.
So I think I need to file an amendment. The product said that state return can be e-filed and the federal amendment must be mailed in. But right now I am not able to e-file state return as well so I guess I have to mail in both.
