Nortel ( NT ) says it will blow another financial filing deadline, forcing it to plead again with its creditors for a waiver. The Brampton, Ont., networking giant says its nearly yearlong bout with book-cleaning is almost complete. Still, the company won't be ready to file financial restatements by Oct. 31 as planned. As a result, the company won't be able to file third-quarter 2004 results by the mid-November deadline. Nortel now expects it will be able to provide restated financials for 2003 and the first two quarters of 2004 by sometime in the middle of next month. The filing delay once again puts Nortel in violation of some lending agreements. The company says it is seeking another waiver from Export Development Canada. Nortel has a $750 million line of credit with EDC, which has granted at least two prior waivers. Nortel must now send a delay-in-filing notification to the Securities and Exchange Commission, since its official third-quarter 2004 results won't be available by the November deadline.