EX-15 5 ex15-nb529389.txt EXHIBIT 15 LETTER FROM INDEPENDENT ACCOUNTANTS EXHIBIT 15 LETTER FROM INDEPENDENT ACCOUNTANTS REGARDING UNAUDITED INTERIM FINANCIAL INFORMATION Northrop Grumman Corporation Los Angeles, California We have made a review, in accordance with standards established by the American Institute of Certified Public Accountants, of the unaudited interim financial information of Northrop Grumman Corporation and subsidiaries for the periods ended March 31, 2001 and June 30, 2001, and of Northrop Grumman Systems Corporation (formerly Northrop Grumman Corporation) and subsidiaries for the periods ended March 31, 2000 and June 30, 2000, as indicated in our reports dated May 10, 2001 and July 25, 2001, respectively; because we did not perform an audit, we expressed no opinion on that information. We are aware that our reports referred to above, which were included in Northrop Grumman Corporation's Quarterly Reports on Form 10-Q for the quarters ended March 31, 2001 and June 30, 2001, are being incorporated by reference in this Registration Statement. We also are aware that the aforementioned reports, pursuant to Rule 436(c) under the Securities Act of 1933, are not considered a part of the Registration Statement prepared or certified by an accountant or a report prepared or certified by an accountant within the meaning of Sections 7 and 11 of that Act. /s/ Deloitte & Touche LLP Deloitte & Touche LLP Los Angeles, California August 10, 2001