SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549



                                    FORM 11-K



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

            For the fiscal year ended December 31, 2002

                                       OR

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

            For the transition period from __________ to __________


                         Commission file number: 1-12385



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

                  NORTHROP GRUMMAN PEI RETIREMENT SAVINGS PLAN


      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
















                                   SIGNATURES




         Pursuant to the requirements of the Securities and 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.





                        NORTHROP GRUMMAN PEI RETIREMENT SAVINGS PLAN


Dated:  June 30, 2003        /s/ J. Michael Hateley
                             _____________________________________
                        By   J. Michael Hateley
                             Chairman, Administrative Committee

































NORTHROP GRUMMAN PEI RETIREMENT SAVINGS PLAN

TABLE OF CONTENTS
--------------------------------------------------------------------------------


                                                                            Page

INDEPENDENT AUDITORS' REPORT                                                  1

FINANCIAL STATEMENTS:

   Statements of Net Assets Available for Plan Benefits
     as of December 31, 2002 and 2001                                         2

   Statement of Changes in Net Assets Available for Plan Benefits for the
     Year Ended December 31, 2002                                             3

   Notes to Financial Statements                                            4-8








INDEPENDENT AUDITORS' REPORT


Administrative Committee
Northrop Grumman PEI Retirement Savings Plan

We have audited the  accompanying  statements  of net assets  available for plan
benefits of the Northrop Grumman PEI Retirement  Savings Plan (the "Plan") as of
December  31, 2002 and 2001 and the related  statement  of changes in net assets
available  for plan  benefits  for the  year  ended  December  31,  2002.  These
financial  statements  are the  responsibility  of the  Plan's  management.  Our
responsibility  is to express an opinion on these financial  statements based on
our audits.

We conducted our audits in accordance with auditing standards generally accepted
in the  United  States of  America.  Those  standards  require  that we plan and
perform the audit to obtain  reasonable  assurance  about  whether the financial
statements are free of material misstatement.  An audit includes examining, on a
test basis,  evidence  supporting  the amounts and  disclosures in the financial
statements.  An audit also includes assessing the accounting principles used and
significant  estimates  made by  management,  as well as evaluating  the overall
financial  statement  presentation.   We  believe  that  our  audits  provide  a
reasonable basis for our opinion.

In our  opinion,  the  financial  statements  present  fairly,  in all  material
respects, the net assets available for plan benefits as of December 31, 2002 and
2001 and the  changes in net assets  available  for plan  benefits  for the year
ended  December 31, 2002 in  conformity  with  accounting  principles  generally
accepted in the United States of America.





/s/ Deloitte & Touche LLP
-------------------------
DELOITTE & TOUCHE LLP

June 26, 2003
Los Angeles, CA





NORTHROP GRUMMAN PEI RETIREMENT SAVINGS PLAN

STATEMENTS OF NET ASSETS AVAILABLE FOR PLAN BENEFITS
DECEMBER 31, 2002 AND 2001
--------------------------------------------------------------------------------------

                                                                   2002        2001
                                                                      
ASSETS:
  Investment in Northrop Grumman Corporation PEI Pension and
    401(k) Plans Master Trust-at fair value (Notes B and C)    $1,174,062   $1,209,537
                                                               ----------   ----------

  Contributions receivables:
    Employer                                                        8,188        6,172
    Participant                                                    18,609       14,231
                                                               ----------   ----------
          Total contributions receivables                          26,797       20,403
                                                               ----------   ----------
NET ASSETS AVAILABLE FOR PLAN BENEFITS                         $1,200,859   $1,229,940
                                                               ==========   ==========


See notes to financial statements.



                                      -2-



NORTHROP GRUMMAN PEI RETIREMENT SAVINGS PLAN

STATEMENT OF CHANGES IN NET ASSETS AVAILABLE FOR PLAN BENEFITS
YEAR ENDED DECEMBER 31, 2002
------------------------------------------------------------------------------------------------------------------------

                                                                                 
ADDITIONS:
  Investment loss-Plan interest in Northrop Grumman Corporation PEI Pension and
    401(k) Plans Master Trust Investment Loss (Notes B and C)                          $  (148,393)
                                                                                       -----------

  Contributions:
    Employer                                                                                63,609
    Participant                                                                            147,382
                                                                                       -----------
           Total contributions                                                             210,991
                                                                                       -----------
           Total additions                                                                  62,598

BENEFITS PAID TO PARTICIPANTS (Note B)                                                     (91,679)
                                                                                       -----------
NET DECREASE                                                                               (29,081)

NET ASSETS AVAILABLE FOR PLAN BENEFITS:
  Beginning of year                                                                      1,229,940
                                                                                       -----------

  End of year                                                                          $ 1,200,859
                                                                                       ===========

See notes to financial statements.






                                      -3-


NORTHROP GRUMMAN PEI RETIREMENT SAVINGS PLAN

NOTES TO FINANCIAL STATEMENTS
YEARS ENDED DECEMBER 31, 2002 AND 2001
--------------------------------------------------------------------------------


A.    DESCRIPTION OF THE PLAN

      The following  description of the Northrop Grumman PEI Retirement  Savings
      Plan (the "Plan") provides only general  information.  Participants should
      refer to the Plan document for a more complete  description  of the Plan's
      provisions.

      General--The  Plan is a qualified  profit-sharing  plan  sponsored  by the
      Productos   Electronicos   Industriales   division  of  Northrop   Grumman
      Electronicos, Inc. (the "Company"). The Plan includes a 401(k) feature and
      employer matching contributions.

      The Plan was established by the Company on March 1, 1996 as a successor to
      the Westinghouse de Puerto Rico Retirement  Savings Plan (the "Predecessor
      Plan"), maintained by Westinghouse de Puerto Rico, Inc. for the benefit of
      Puerto  Rican  employees  of  certain  Westinghouse  Electric  Corporation
      affiliated  companies who became  employees of the Company,  and any other
      subsequent eligible employees of the Company.

      Effective  May 1,  1997,  the Plan  transferred  all of its  assets to the
      Northrop  Grumman  Corporation  PEI Pension and 401(k)  Plans Master Trust
      (the "Master  Trust"),  which is  administered  by Banco Popular de Puerto
      Rico (the  "Trustee").  On October 1, 2001,  State  Street  Bank and Trust
      Company ("State Street") was appointed as the agent to the Trustee.  State
      Street is  responsible  for tracking the  individual  assets and reporting
      month-end plan accounting to the Trustee.

      Contributions--Plan participants may contribute between 1% and 8% of total
      compensation,  in increments of 1% on a pre-tax basis. Basic contributions
      may  be  made  in  amounts  of 1% to 4% of  total  compensation.  Eligible
      employees  who have  authorized  the maximum Basic  contribution  may make
      Supplementary  contributions  in  amounts  between  1%  and  4%  of  total
      compensation. Contributions are subject to certain limitations.

      The Company  contributes  a match of 50% of the amount of a  participant's
      Basic contribution.  The maximum matching  contribution will not exceed 2%
      of the total compensation of the participant.

      An eligible  employee may roll over any amount from another qualified plan
      or from an Individual Retirement Account into the Plan, provided that such
      rollover  amount  is paid to the  Trustee  within  60 days of the date the
      employee received the qualifying rollover distribution.

      Participant   Accounts--A   separate   account  is  maintained   for  each
      participant,  each of which has two subaccounts.  Basic and  Supplementary
      contributions  are allocated to the  participant's  Contribution  Account.
      Company matching  contributions are allocated to the participant's Company
      Matching  Contribution  Account.  Assets of the Master Trust are valued at
      the end of each  month,  and on any  other  date,  and take  into  account
      earnings and losses of the Plan along with  appreciation or  depreciation,
      expenses and distributions. The benefit to which a participant is entitled
      is the benefit that can be provided from the participant's vested account.

                                      -4-


      Vesting--Plan  participants  are 100% vested in, and have a nonforfeitable
      right to, the balance of their Basic and  Supplementary  contributions  at
      all times. Plan participants  become 100% vested in Company  contributions
      after three years of service and are 0% vested prior to that time. Company
      contributions  become  100%  vested  upon  the  death  of  a  participant.
      Rollovers are 100% vested at all times and are not subject to forfeiture.

      Investment  Options--Upon  enrollment in the Plan,  each  participant  may
      direct that his or her accounts be invested in any of the  following  four
      investment funds within the Master Trust:

         Northrop Grumman Fund--The Northrop Grumman Fund invests exclusively in
         Northrop Grumman Corporation common stock.

         U.S.  Equity  Fund--The U.S.  Equity Fund consists of holdings in large
         sized U.S.  company stocks.  The fund focuses on companies with records
         of growing earnings and the potential for future dividend growth.

         Fixed Income  Fund--The  Fixed Income Fund invests in publicly  traded,
         high-quality fixed income securities.

         U.S. Bond Fund--The U.S. Bond Fund invests in high-quality  bond market
         through diversified  portfolio of lower-quality,  higher-risk corporate
         debt securities.

      The  Viacom  Incorporated  Common  Stock  Fund  was  transferred  from the
      Predecessor   Plan.  This  fund  was  frozen  in  2000,  and  no  employee
      contributions have been allowed since the transfer. In September 2001 this
      fund was no longer offered as an investment  option, and all employees had
      to reallocate their contributions included in this fund to other funds.

      Payment of Benefits--All withdrawals from the Plan during employment shall
      be  paid in  cash.  All  distributions  from  the  Plan  upon  retirement,
      termination or death shall be paid in cash and/or shares of employer stock
      held in the account. A participating employee may elect to withdraw all or
      a portion of the vested  portion of his or her account only in the case of
      hardship,  as defined by the Plan, and may make withdrawals twice per year
      but not more than once per month. If a participating  employee  retires or
      his or her  employment  is  terminated,  the vested  portion of his or her
      account  shall  be  distributed  to  him or her  as  soon  as  practicable
      following the next valuation date after retirement or termination  occurs.
      Any  nonvested  portion of his or her account  shall be  forfeited at that
      time. In the case of death of a participating  employee, his or her entire
      account shall be distributed in a lump sum to his or her beneficiary(ies).

      Forfeited  Accounts--Any  amounts  forfeited  shall be used to reduce  the
      Company's  obligation  to make company  matching  contributions  under the
      Plan.  In 2002,  no  employer  contributions  were  reduced  by  forfeited
      nonvested amounts.

B.    SUMMARY OF ACCOUNTING POLICIES

      Basis of  Accounting--The  accompanying  financial  statements  have  been
      prepared in accordance with accounting  principles  generally  accepted in
      the United States of America.

                                      -5-


      Use of  Estimates--The  preparation of financial  statements in conformity
      with  accounting  principles  generally  accepted in the United  States of
      America requires  management to make estimates and assumptions that affect
      the  reported  amounts of assets,  liabilities  and changes  therein,  and
      disclosure  of contingent  assets and  liabilities.  Actual  results could
      differ from those estimates.

      Risk and Uncertainties--The Plan invests in various securities,  including
      U.S.  government  securities,  corporate  debt  instruments  and corporate
      stocks. Investment securities, in general, are normally exposed to various
      risks, such as interest rate, credit and overall market volatility. Due to
      the ongoing level of risk associated with investment  securities,  changes
      in the values of investment  securities may occur in the near term,  which
      could  materially  affect the amounts  reported in the  statements  of net
      assets available for plan benefits.

      Investment   Valuation  and  Income   Recognition--In   the   accompanying
      statements of net assets available for plan benefits,  the Plan's interest
      in the Master Trust is stated at fair value. Quoted market prices are used
      to value investments in the Master Trust.

      Purchases  and sales of  securities  are recorded on a  trade-date  basis.
      Interest  income is recorded on the accrual basis.  Dividends are recorded
      on the ex-dividend date.

      Broker  commissions,  transfer  taxes,  and  other  charges  and  expenses
      incurred in connection  with the purchase,  sale or other  disposition  of
      securities or other  investments held by the Master Trust are added to the
      cost of the  securities  or other  investments,  or are deducted  from the
      proceeds of the sale or other disposition  thereof, as appropriate.  Taxes
      (if any) on the assets of the  funds,  or on any gain  resulting  from the
      sale or other disposition of such assets, or on the earnings of the funds,
      are  apportioned in such a manner as the Trustee deems equitable among the
      participants and former  participants (if any) whose interests in the Plan
      are affected,  and the share of such taxes  apportioned  to each person is
      charged against his or her account of the Plan.

      Administrative  expenses--Administrative  expenses of the Plan are paid by
      the Company.

      Payment of Benefits--Benefits are recorded when paid.

      Reclassification--Certain  reclassifications  have  been  made to the 2001
      balance to conform to the 2002 presentation.

C.    INVESTMENTS

      The investments of the Plan as of December 31, 2002 and 2001 are stated at
      fair  values  determined  and  reported  by  the  Trustee.   Proportionate
      interests of each  participating plan were ascertained on the basis of the
      Trustee's  plan  accounting  method for master  trust  arrangements.  Plan
      assets represented 54% and 52% of total net assets reported by the Trustee
      of the Master Trust as of December 31, 2002 and 2001, respectively.

                                      -6-


      The net assets of the Master Trust at fair value  consist of the following
        as of December 31:


                                                                                        2002              2001
                                                                                                    
        Assets:
          Investment in Northrop Grumman Employee Benefit Plan
            Master Trust                                                                $  996,613        $1,117,868
          Short-term investments                                                           705,966           560,320
          Corporate stocks                                                                 467,268           649,196
          Dividends and interest receivable                                                    828                21
                                                                                        ----------        ----------
        Net assets of the Master Trust                                                  $2,170,675        $2,327,405
                                                                                        ==========        ==========


      The  Master  Trust  held  approximately  285  shares of  Northrop  Grumman
      Corporation  common  stock  with fair  values of  $27,645  and  $28,731 at
      December  31,  2002 and  2001,  respectively,  which are  included  in the
      determination  of net assets  available  to this Plan at December 31, 2002
      and 2001.

      Investment  (losses)  income  for the  Master  Trust is as  follows  as of
      December 31, 2002:


                                                                                                    
        Plan interest in the Northrop Grumman Employee Benefit Plan Master Trust                          $  (170,355)
        Net depreciation in fair value of investments                                                        (160,291)
        Interest                                                                                               11,442
        Dividends                                                                                                 456
                                                                                                          -----------
        Total                                                                                             $  (318,748)
                                                                                                          ===========

D.    PLAN TERMINATION

      Although  it has not  expressed  any intent to do so, the  Company has the
      right under the Plan to discontinue its  contributions  at any time and to
      terminate the Plan subject to the  provisions  of the Employee  Retirement
      Income  Security  Act of 1974.  In the  event of the  Plan's  termination,
      participants will become 100% vested in their accounts.

E.    FEDERAL INCOME TAX STATUS

      The Plan is intended to be qualified under the Internal  Revenue Code (the
      "IRC") and the Puerto Rico Income Tax Code of 1994.  The Internal  Revenue
      Service has determined and informed the Company by letter,  dated December
      11, 2001,  that the Plan and related trust are designed in accordance with
      applicable requirements of the IRC. The Company believes that the Plan and
      the related trust are designed and currently  being operated in compliance
      with the applicable  provisions of the IRC and Puerto Rico Income Tax Code
      of 1994,  and that the  related  trust was tax exempt as of the  financial
      statement date. Therefore, no provision for income taxes has been included
      in the Plan's financial statements.

                                      -7-



F.    RECONCILIATION OF FINANCIAL STATEMENTS TO FORM 5500

      The  following  is a  reconciliation  of net  assets  available  for  plan
      benefits per the financial statements to the Form 5500 as of December 31:


                                                                                        2002              2001
                                                                                                    

        Net assets available for plan benefits for the financial statements             $ 1,200,859       $ 1,229,940
        Less:  Amounts allocated to withdrawing participants                                 (9,345)          (19,332)
                                                                                        -----------       -----------
        Net assets available for plan benefits per the Form 5500                        $ 1,191,514       $ 1,210,608
                                                                                        ===========       ===========


      The following is a reconciliation of benefits paid to participants per the
      financial  statements  to the Form 5500 for the year  ended  December  31,
      2002:


                                                                                                    

        Benefits paid to participants per the financial statements                                        $    91,679
        Add:  Amounts allocated to withdrawing participants at December 31, 2002                                9,345
        Less:  Amounts allocated to withdrawing participants at December 31, 2001                             (19,332)
                                                                                                           -----------
        Benefits paid to participants per the Form 5500                                                   $    81,692
                                                                                                          ===========


      Amounts  allocated to  withdrawing  participants  are recorded on the Form
      5500 for benefit  claims that have been processed and approved for payment
      prior to December 31 but not yet paid as of that date.

G.    SUBSEQUENT EVENTS

      Effective  January 1, 2003, the Plan  transferred all of its assets to the
      Northrop Grumman Defined Contribution Plans Master Trust.





                                      -8-




                                 EXHIBIT INDEX


Exhibit No.            Document
-----------            --------

23                     Independent Auditors' Consent

99.1                   Certification pursuant to 18 U.S.C. Section 1350
                       as Adopted Pursuant to Section 906 of the Sarbanes-Oxley
                       Act of 2002

99.2                   Certification pursuant to 18 U.S.C. Section 1350
                       as Adopted Pursuant to Section 906 of the Sarbanes-Oxley
                       Act of 2002