SECURITIES AND EXCHANGE COMMISSION

                            WASHINGTON, D.C. 20549

                                   FORM 11-K
                               (Amendment No. 1)

                ANNUAL REPORT PURSUANT TO SECTION 15 (d) OF THE
                        SECURITIES EXCHANGE ACT OF 1934





[X]  Annual report pursuant to Section 15 (d) of the Securities
     Exchange Act of 1934 (No fee required)

     For the period ended December 31, 1999.


                                       OR


[ ]  Transition report pursuant to SECTION 15 (d) of the Securities Exchange Act
     of 1934 (No fee required)

     For the transition period from __________ to ____________

                         Commission file number 1-3229


      A.  Full title of the plan and the address of the plan, if different from
that of the issuer named below:


                EMPLOYEES' STOCK PURCHASE PLAN OF LOGICON, INC.
                                 Logicon, Inc.
                               3701 Skypark Drive
                           Torrance, California 90505


      B.  Name of issuer of the securities held pursuant to the Plan and the
address of its principal executive office:


                          NORTHROP GRUMMAN CORPORATION
                             1840 Century Park East
                          Los Angeles, California 90067



The undersigned hereby amends the Statements of Income and Changes in Plan
Equity of its Annual Report on Form 11-K filed with the Commission on March 30,
2000 to read as follows:




                                      -1-

EMPLOYEES' STOCK PURCHASE PLAN OF LOGICON, INC. STATEMENTS OF INCOME AND CHANGES IN PLAN EQUITY YEARS ENDED DECEMBER 31, 1999 (LIQUIDATION BASIS), 1998 AND 1997 - ---------------------------------------------------------------------------------------------------- 1999 1998 1997 ADDITIONS: Investment income: Dividend income $ 338,590 $ 331,321 $ 256,332 Interest income 19,574 16,836 18,864 Net realized and unrealized appreciation in market value of Logicon, Inc. common stock 13,199,447 Net realized and unrealized (depreciation) appreciation in market value of Northrop Grumman Corporation common stock (5,021,276) (7,694,223) 230,946 Contributions by participants 6,344,164 6,072,697 5,460,278 Contributions by Logicon, Inc., net of participant forfeitures of $291,010, $754,405 and $783,459 2,938,668 2,169,065 1,846,696 ------------ ------------ ------------ 4,619,720 895,696 21,012,563 ------------ ------------ ------------ DEDUCTIONS: Participant withdrawals 1,713,240 3,317,793 2,564,383 Distributions to participants 5,079,685 10,626,339 5,431,944 Distributions of dividends and interest 237,772 232,968 203,268 ------------ ------------ ------------ 7,030,697 14,177,100 8,199,595 ------------ ------------ ------------ DISTRIBUTIONS TO PARTICIPANTS UPON PLAN TERMINATION (Note 5) 15,909,805 ------------ (DECREASE) INCREASE IN PLAN EQUITY (18,320,782) (13,281,404) 12,812,968 PLAN EQUITY: Beginning of period 18,320,782 31,602,186 18,789,218 ------------ ------------ ------------ End of period $ - $ 18,320,782 $ 31,602,186 ============ ============ ============ See notes to financial statements. -2-

SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the trustees (or other persons who administer the employee benefit plan) have duly caused this annual report to be signed on its behalf by the undersigned hereunto duly authorized. EMPLOYEES' STOCK PURCHASE PLAN OF LOGICON, INC. /s/ Steve Movius ------------------------------------- Dated: April 5, 2000 By Steve Movius Chief Financial Officer -3-

Exhibit 1 --------- INDEPENDENT AUDITORS' CONSENT We consent to the incorporation by reference in Registration Statement No. 333-34717 of Northrop Grumman Corporation on Form S-8 of our report dated March 30, 2000, appearing in this Annual Report on Form 11-K/A of the Employees' Stock Purchase Plan of Logicon, Inc., for the year ended December 31, 1999. /s/ Deloitte & Touche LLP - ------------------------- Deloitte & Touche LLP Los Angeles, California April 5, 2000 -4-