Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

Walter J. Zable, founder, Chief Executive Officer and Chairman of the Board of the Registrant, passed away on June 23, 2012. Effective as of June 24, 2012, the Registrant's Board of Directors appointed William W. Boyle to serve as the Registrant's interim President and Chief Executive Officer. Mr. Boyle will continue in his current roles as Chief Financial Officer and as a member of the Registrant's Board of Directors.

Information concerning Mr. Boyle's business experience and compensation is incorporated by reference to the Registrant's definitive Proxy Statement filed with the Securities and Exchange Commission on January 18, 2012. There has been no change to Mr. Boyle's compensation at this time.

Mr. Boyle has no family relationship with any of the officers or directors of the Registrant and there are no transactions in which Mr. Boyle has an interest requiring disclosure under Item 404(a) of Regulation S-K.

Walter C. Zable, previously the Vice Chairman of the Registrant's Board of Directors, has been appointed Chairman of the Registrant's Board of Directors and will remain Vice President. Dr. Robert Sullivan will remain in his role as Lead Independent Director.

The Registrant issued a press release and the Registrant's Board of Directors issued a statement announcing the passing of Mr. Walter J. Zable. Copies of the press release and the statement by the Registrant's Board of Directors are attached hereto as Exhibits 99.1 and 99.2, respectively, and are incorporated herein by reference.

Item 9.01 Financial Statements and Exhibits.

Exhibit Number Description of Exhibit 99.1 Press release issued by the Registrant on June 25, 2012. 99.2 Statement of the Registrant's Board of Directors on June 25, 2012.

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