As filed with the Securities and Exchange Commission on July 13, 2001 Registration No. 333-03959 ================================================================================ SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 _________________________________________ POST-EFFECTIVE AMENDMENT NO. 2 TO FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 _________________________ NORTHROP GRUMMAN CORPORATION (Formerly NNG, Inc.) (Exact name of Registrant as specified in its charter) DELAWARE 001-16411 95-4840775 (State of Incorporation) (Commission File Number) (I.R.S. Employer Identification No.) 1840 CENTURY PARK EAST LOS ANGELES, CALIFORNIA 90067 (Address of Principal Executive Offices, Including Zip Code) (310) 553-6262 (Registrant's Telephone Number, Including Area Code) _________________________ NORTHROP GRUMMAN ELECTRONIC SENSORS & SYSTEMS SECTOR UNION REPRESENTED EMPLOYEES SAVINGS AND INVESTMENT PLAN NORTHROP GRUMMAN PEI RETIREMENT SAVINGS PLAN (Full title of the plan) _________________________ W. Burks Terry Corporate Vice President and General Counsel Northrop Grumman Corporation 1840 Century Park East Los Angeles, California 90067 (310) 553-6262 (Name, address, including zip code, and telephone number, including area code, of agent for service) _________________________ Copies to: Andrew E. Bogen, Esq. Gibson, Dunn & Crutcher LLP 333 South Grand Avenue Los Angeles, California 90071-3197 (213) 229-7000 ================================================================================

EXPLANATORY NOTE POST-EFFECTIVE AMENDMENT NO. 2 TO FORM S-8 Post-Effective Amendment No. 1 filed on July 10, 2001 incorrectly referred to (i) the Northrop Grumman Electronic Sensors and Systems Sector Union Represented Employees Savings and Investment Plan as the Northrop Grumman Electronic Sensors & Systems Division Savings Program and (ii) the Northrop Grumman PEI Retirement Savings Plan as the Northrop Grumman PEI Savings Plan. This Post-Effective Amendment No. 2 is being filed to correct the names of the two plans to which this registration statement relates. This Post-Effective Amendment is being filed pursuant to Rule 414 under the Securities Exchange Act of 1933, as amended (the "Securities Act"), to reflect the creation by Northrop Grumman Systems Corporation (formerly Northrop Grumman Corporation), a Delaware corporation ("Systems"), of a new holding company, Northrop Grumman Corporation (formerly NNG, Inc.) a Delaware corporation ("New Northrop Grumman"), above Systems. The creation of New Northrop Grumman was effected pursuant to an Amended and Restated Agreement and Plan of Merger (the "Amended Merger Agreement"), dated January 23, 2001, among New Northrop Grumman, Systems, Litton Industries, Inc., a Delaware corporation ("Litton") and LII Acquisition Corp., a Delaware corporation and wholly owned subsidiary of New Northrop Grumman ("LII"). As contemplated by the Amended Merger Agreement, on April 2, 2001, Systems completed a corporate reorganization (the "Northrop Reorganization") that was effected by action of its Board of Directors without a vote of Systems' stockholders, pursuant to Section 251(g) of the Delaware General Corporation Law (the "DGCL") and an Agreement and Plan of Merger, dated as of March 20, 2001 (the "Merger Agreement"), between Systems, New Northrop Grumman and NGC Acquisition Corp., a Delaware corporation and indirect wholly-owned subsidiary of Systems ("NGC"). In the Northrop Reorganization, NGC was merged with and into Systems, with Systems as the surviving corporation and a wholly-owned subsidiary of New Northrop Grumman, the new holding company. Pursuant to the requirements of Section 251(g) of the DGCL, at the effective time of that merger and in connection with the Northrop Reorganization, New Northrop Grumman changed its name from NNG, Inc. to "Northrop Grumman Corporation," and Systems changed its name to "Northrop Grumman Systems Corporation." Upon consummation of the Northrop Reorganization and in accordance with Section 251(g) of the DGCL, (a) all of the outstanding shares of capital stock of Systems were automatically converted into the same number of shares of the same class of capital stock of New Northrop Grumman, and (b) each certificate representing shares of Northrop capital stock, without any action on the part of the holder thereof, is now deemed to represent an equal number of shares of the same class of capital stock of New Northrop Grumman. In accordance with Rule 414 under the Securities Act, New Northrop Grumman, as the successor issuer to Systems, hereby expressly adopts this registration statement as its own for all purposes of the Securities Act and the Securities Exchange Act of 1934, as amended. The Northrop Grumman Electronic Sensors & Systems Sector Union Represented Employees Savings and Investment Plan shall continue to be known as the Northrop Grumman Electronic Sensors & Systems Sensor Union Represented Employees Savings and Investment Plan, and the Northrop Grumman PEI Retirement Savings Plan shall continue to be known as the Northrop Grumman PEI Retirement Savings Plan (collectively, the "Plans"). The Plans shall continue to cover employees of Systems. However, shares of stock issued in accordance with the Plans shall be shares of stock of the New Northrop Grumman rather than shares of stock of Systems. The applicable registration fees were paid at the time of the original filing of this registration statement.

SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1933, as amended, the registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and has duly caused this amendment to the registration statement to be signed on its behalf by the undersigned, thereunto duly authorized in the city of Los Angeles, state of California, on July 12, 2001 NORTHROP GRUMMAN CORPORATION (formerly NNG, Inc.) By: /s/ John H. Mullan ------------------------------- John H. Mullan Corporate Vice, Secretary and Associate General Counsel Pursuant to the requirements of the Securities Act of 1933, as amended, this amendment has been signed by the following persons in the capacities and on the dates indicated. SIGNATURE TITLE DATE Chairman of the Board, President and Chief * Executive Officer and ____________________________ Director (Principal Executive July 12, 2001 Kent Kresa Officer) * Corporate Vice President and ____________________________ Chief Financial Officer July 12, 2001 Richard B. Waugh, Jr (Principal Financial Officer) * Vice President and Controller ____________________________ (Principal Accounting Officer) July 12, 2001 Sandra Wright * Director July 12, 2001 ____________________________ 3

John T. Chain, Jr. ______________________________ Director Lewis W. Coleman ____________*_________________ Director July 12, 2001 Vic Fazio ____________*_________________ Director July 12, 2001 Phillip Frost ____________*_________________ Director July 12, 2001 Charles R. Larson ______________________________ Director Robert A. Lutz ______________________________ Director Aulana L. Peters ______________________________ Director John Brooks Slaughter ____________*_________________ Director July 12, 2001 Dr. Ronald D. Sugar /s/ John H. Mullan By: __________________________ John H. Mullan, As attorney-in-fact pursuant to authority granted under Power of Attorney filed with this Registration Statement 4