5330 for excess contributions

[AKconsult]

it seems like this should be an easy question to answer, but I am having trouble finding anything. If employer failed ADP/ACP in 2012 and doesn't get it corrected until 2015, does the 5330 have to be filed for multiple years? I THINK the answer is that only 1 5330 is filed but because it is late, the IRS will probably assess penalties for late filing, but I can't find anything definitive on this.

Unlike the 5330s for late deferrals, which must be filed for each year until the deposit is made.... correct?

Thanks!!

[Lou S.]

If you failed in 2012 how are you correcting in 2015? Refunds, if that is correction method must be made by 12 months after PYE otherwise you are looking at one of the VCP corrections. Am I missing something? I probably am.