It's not even close to the champion, The Ottawa Citizen*.
From the NYT:
Correction: August 16, 2008
An article on Friday about the planned construction of two large
solar powerinstallations in Californiadescribed incorrectly the operation of the solar panels in one, to be built by SunPower. Its panels pivot from east to west to follow the sun over the course of a day — not west to east.
If you're like me, and I know I am, the Regret the Error blog (motto: Mistakes Happen) is good fun:
*The O.C. had the best retraction/apology EVER:
...And a reprise of one of my favorites; from the Ottawa Citizen:
HT: Jay Leno
“The Ottawa Citizen and Southam News wish to apologize for our apology to Mark Steyn, published October 22nd.
In correcting the incorrect statements about Mr. Steyn, published October 15th, we incorrectly published the incorrect correction.
We accept and regret that our original regrets were unacceptable, and we apologize to Mr. Steyn for any previous distress caused by our previous apology.”