'Sunday Night Football' -- FCC Will NOT Punish NBC for Airing 'Bullsh*t' Chant

The FCC will not punish NBC for failing to cut the audio of a massive "bullsh*t" stadium chant that made it on the air during last night's Ravens vs. Patriots match up.

As we previously reported, the crowd in Baltimore erupted in a booming BS chant after believing the replacement refs blew another call. The chant went on for several minutes ... and at one point announcer Al Michaels called it the "loudest manure chant" he ever heard.

Now, a rep for the FCC tells us the org. will not go after NBC ... explaining, “There’s never been any penalties imposed for obscenities inadvertently heard over air.”