Washington, D.C. 20549

                                    FORM 6-K

                            Report of Foreign Issuer

                      Pursuant to Rule 13a-16 or 15d-16 of
                       the Securities Exchange Act of 1934

                        For the Month of March 14 2003

                         Commission file number: 0-30924

                                   MARCONI PLC

             (Exact name of Registrant as specified in its Charter)

                                   4th Floor
                                 Regents Place
                                338 Euston Road
                                    NW1 3BT
                    (Address of principal executive offices)

(Indicate by check mark whether the registrant files or will file annual
reports under cover Form 20-F or Form 40-F.)

                             Form 20-F X   Form 40-F

(Indicate by check mark whether the registrant by furnishing the information
contained in this Form is also thereby furnishing the information to the
Commission pursuant to Rule 12g3-2(b) under the Securities Exchange
Act of 1934.)

                                   Yes   No X


In order to utilize the "Safe Harbor"  provisions  of the United States  Private
Securities  Litigation Reform Act of 1995 (the "Reform Act"),  Marconi plc ( the
"Company")  is  providing  the  following  cautionary   statement.   Except  for
historical information contained herein,  statements contained in this Report on
Form 6-K may constitute  "forward-looking  statements" within the meaning of the
Reform Act. The words "believe",  "anticipate",  "expect", "intend", "estimate",
"plan",  "assume",  "positioned",   "will",  "may",  "risk"  and  other  similar
expressions which are predictions of or indicate future events and future trends
which do not relate to historical matters identify  forward-looking  statements.
Reliance should not be placed on such statements  because they involve known and
unknown  risks,  uncertainties  and other factors which are in some cases beyond
the control of the Company,  together with its subsidiaries  (the "Group"),  and
may cause the actual results, performance or achievements of the Group to differ
materially  from  anticipated   future  results,   performance  or  achievements
expressed or implied by such forward-looking  statements (and from past results,
performance or  achievement).  Certain  factors that may cause such  differences
include  but are not  limited  to the  following:  (1) any major  disruption  in
production  at our key  facilities;  (2) changes in the  environmental,  tax and
other laws and regulations,  which, among other things,  could cause us to incur
substantial additional capital expenditures and operation and maintenance costs;
and (3) adverse  changes in the markets for our products,  including as a result
of increased  competition in the highly  competitive  international  markets for
such products. These and other risks, uncertainties and factors are discussed in
the  Company's  Registration  Statement  on Form F-1 and other  filings with the
Securities and Exchange  Commission,  including this Form 6-K.  Shareholders and
prospective  investors  are  cautioned  not to  place  undue  reliance  on these
forward-looking  statements which speak only as to the Company's  judgment as of
the date hereof.  Any such  forward-looking  statements are not intended to give
any  assurance as to future  results.  The Company  undertakes  no obligation to
publicly update or revise any of these  forward-looking  statements,  whether to
reflect new information or future events or circumstances or otherwise.

                             MARCONI BOARD CHANGES

London - 14 March 2003 - Marconi today announced the agreement of two new
non-executive directors to join the Board of Marconi Corporation plc.

Kathleen Flaherty, a US-based global telecommunications executive with over
twenty years experience in the communications industry, has agreed to join as a
non-executive director of Marconi Corporation plc. Ian Clubb, with over 25 years
experience in a range of senior financial and management roles, has also agreed
to join the Board of Marconi Corporation plc as a non-executive director. Both
these appointments will take effect at the time of Marconi Corporation's
forthcoming listing on the London Stock Exchange following the implementation of
the Group's financial restructuring.

Kathleen Flaherty spent seventeen years with MCI, latterly as senior vice
president, global product architecture and engineering. Previously (1995-97) she
spent two years on secondment from MCI to BT, during which time she was BT's
marketing director for National Business Communications. Between 1998 and 2001
Kathleen was in Brussels and New York as president and chief operating officer
of Winstar International, a fixed wireless communications company.

Ian Clubb is chairman of First Choice plc, Shanks Group plc and Platinum
Investment Trust plc. He is also a non-executive director of oil industry
services company, Expro International plc. He was group finance director at BOC
Group plc (1991-1994) and deputy chief executive and group finance director at
British Satellite Broadcasting Ltd (1989-1991).

These appointments represent significant additions to the restructuring of the
Marconi Board. The Company expects to make further appointments in due course.
Furthermore, when the forthcoming scheme of arrangement becomes effective, the
financial restructuring will have reached its final stages. Accordingly, Allen
Thomas, a non-executive director who joined the Board in May 2002 specifically
to assist the Company with its restructuring, will step down from the Boards of
Marconi plc and Marconi Corporation with immediate effect.

John Devaney, chairman of Marconi plc, said: "I am delighted to welcome Kathleen
Flaherty and Ian Clubb to the Board. Kathleen's international telecommunications
experience and Ian's broad base of experience in senior management, will be
great assets to the Company as we emerge and rebuild from our financial

"Allen's restructuring experience enabled him to make a considerable
contribution to helping the company through its financial restructuring. As we
reach the final stages of that process, Allen has decided that it is appropriate
for him to step down from the Board at this time.

"We wish Allen well and thank him for his contribution in his time on the Board
of Marconi."

The Board of Marconi Corporation plc after the forthcoming restructuring will
now comprise:

Chairman                     John Devaney

Executive Directors:         Mike Parton, Chief Executive Officer
                             Mike Donovan, Chief Operating Officer
                             Chris Holden, Chief Financial Officer (Interim)

Non-Executive Directors:     Kent Atkinson, Chairman of Audit Committee
                             Ian Clubb, Chairman of Remuneration Committee
                             Kathleen Flaherty
                             Werner Koepf


About Marconi plc

Marconi plc is a global telecommunications equipment and solutions company
headquartered in London. The company's core business is the provision of
innovative and reliable optical networks, broadband routing and switching and
broadband access technologies and services. The company's aim is to help fixed
and mobile telecommunications operators worldwide reduce costs and increase

The company's customer base includes many of the world's largest
telecommunications operators. The company is listed on the London Stock Exchange
under the symbol MONI. Additional information about Marconi can be found at

This press release contains forward-looking statements with respect to products,
partners, customers, future growth and other matters. Please refer to the Form
20-F report and Form 6-K reports filed by Marconi plc with the United States
Securities and Exchange Commission for a discussion of risks that could cause
actual results

to differ materially from such statements.

Copyright (c) 2003 Marconi plc. All rights reserved. All brands or product names
are trademarks of their respective holders.


Joe Kelly/David Beck

Public Relations

Marconi plc

+44 (0) 207 306 1771

+44 (0) 207 306 1490

Heather Green

Investor Relations

Marconi plc

+44 (0) 207 306 1735


Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned, thereunto duly authorized.

                                       MARCONI PLC

                                       By:     ____M Skelly____

                                       Name:   M Skelly
                                       Title:  Secretary

Date: 14 March 2003