Business & farm

You aren't going to be able to electronically file a single form (Schedule K-1) from your Form 1065 return. 

Federal and state e-filing systems are designed to accept and process compete returns, not individual forms that have been changed.

As @MinhT stated, "mark the K-1 as corrected and reissue the K-1 then file it with the IRS with a letter stating that the K-1 has been corrected for an error in the SSN of the partner." 

Mail the IRS copy of the corrected K-1 to the same address you would have mailed the entire 1065 return. See list below: