DRAFT #1

CONTACT: Joseph C. BerenatoChairman, President and Chief Executive Officer(310) 513-7209

FOR IMMEDIATE RELEASE

DUCOMMUN INCORPORATED ANNOUNCES Contract for Boeing 777 Aft Cowl

LOS ANGELES, California (December 1, 2009) - Ducommun Incorporated (NYSE:

DCO) today announced that its Ducommun AeroStructures, Inc. (DAS) subsidiary has been

awarded a contract to manufacture the Boeing 777 aircraft aft engine aft cowl section from

Aerospace Dynamics International of Valencia, California. The value of the contract over the

period of performance is worth up to $26 million.

Aerospace Dynamics International-a subsidiary of The Marvin Engineering Group-Los

Angeles, California, is a leading supplier of large machined aircraft structures.

Ducommun will build these cowl sections at their Gardena, California facility.

Ducommun AeroStructures manufactures large, complex structural components and

assemblies in aluminum, specialty alloys such as titanium, metal bond and composites for a wide

variety of military and commercial aerospace applications.

Founded in 1849, Ducommun Incorporated provides engineering and manufacturing

services to the aerospace and defense industry.

The statements made in this press release include forward-looking statements that

involve risks and uncertainties. The Company’s future financial results could differ materially

from those anticipated due to the Company’s dependence on conditions in the airline industry,

the level of new commercial aircraft orders, production rates for Boeing commercial aircraft, the

C-17 and Apache helicopter rotor blade programs, the level of defense spending, competitive

pricing pressures, manufacturing inefficiencies, start-up costs and possible overruns on new

contracts, technology and product development risks and uncertainties, product performance,

risks associated with acquisitions and dispositions of businesses by the Company, increasing

- more -

ESTABLISHED IN 1849 23301 WILMINGTON AVENUE CARSON CA 90745 TEL (310) 513-7280 FAX (310) 513-7279

DUCOMMUN INCORPORATED ANNOUNCES $100 MILLION CONTRACT FOR THE TAILCONE AND FUSELAGE DOORS ON EMBRAER’S NEW LEGACY 450/500 SERIES BUSINESS JETSJune __, 2009Page 2 of 2.

consolidation of customers and suppliers in the aerospace industry, possible goodwill

impairment, availability of raw materials and components from suppliers, and other factors

beyond the Company’s control update as appropriate

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