SCHEDULE 14A INFORMATION
          Proxy Statement Pursuant to Section 14(a) of the Securities
                             Exchange Act of 1934

Filed by the Registrant  [x]
Filed by a Party other than the Registrant  [ ]

Check appropriate box:
[ ]  Preliminary Proxy Statement             [ ]  Confidential, for Use of the
                                                  Commission Only (as permitted
                                                  by Rule 14a-6(e)(2))
[ ]  Definitive Proxy Statement
[x]  Definitive Additional Materials
[ ]  Soliciting Material under Rule 14a-12

                                   TRW INC.
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               (Name of Registrant as Specified in Its Charter)

                                Not Applicable
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   (Name of Person(s) Filing Proxy Statement, if Other Than the Registrant)

Payment of filing fee (Check the appropriate box):

[x]  No fee required.

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          pursuant to Exchange Act Rule 0-11 (Set forth the amount on which
          the filing fee is calculated and state how it was determined):

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[ ]  Check box if any part of the fee is offset as provided by Exchange Act
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     paid previously. Identify the previous filing by registration statement
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March 29, 2002


Information for TRW Stock Savings Plan participants

The following provides guidance to participants of TRW's SSP who recently
have received materials from Northrop Grumman:

o         You may have received a mailing from Northrop Grumman near the
          deadline to inform Trustees on whether or not you wish to tender
          your shares into Northrop Grumman's Offer to Exchange. The lateness
          of this mailing was unfortunate, but it was Northrop Grumman's
          mailing--not TRW's.

o         If you did not or could not provide your instructions before the
          deadline, the Trustees will make a decision for you with respect to
          the Offer to Exchange in their own fiduciary judgment.

o         Very shortly you will receive proxy materials from TRW and from
          Northrop Grumman regarding upcoming shareholder meetings, which will
          include proposals concerning Northrop Grumman's Offer to Exchange.
          In addition, North American TRW employees will receive a voting
          guide booklet outlining your Board's recommendations on the matters
          to be presented at these meetings.

The directors and certain executive officers of TRW may be deemed to be
participants in the solicitation of proxies from shareholders of TRW in
connection with TRW's special meeting of shareholders under the Ohio Control
Share Acquisition Statute. Information concerning such participants is
contained in TRW's definitive proxy statement relating to TRW's 2002 Annual
Meeting filed with the Securities and Exchange Commission on March 4, 2002 on
Schedule 14A.

This communication relates to Northrop Grumman's exchange offer commenced
March 4, 2002. Shareholders of TRW are advised to read TRW's
Solicitation/Recommendation Statement on Schedule 14D-9, filed March 13, 2002,
as it may be amended from time to time, and TRW's PROXY STATEMENT FOR THE
SPECIAL MEETING IN CONNECTION WITH THE SOLICITATION OF PROXIES FROM TRW
SHAREHOLDERS WHEN IT BECOMES AVAILABLE, BECAUSE THEY CONTAIN IMPORTANT
INFORMATION. Shareholders of TRW and other interested parties may obtain, free
of charge, copies of the Schedule 14D-9, TRW's proxy statement and other
documents filed by TRW with the SEC at the SEC's internet website at
www.sec.gov. Each of these documents may also be obtained, free of charge, by
calling investor relations at TRW at 216-291-7506.