Safety Eligibility Letter LS-54

Refer to: HSA-10/LS-54

John Schwarz, PE
Sales Engineer
Component Products, Incorporated
521 Morse Avenue
Schaumburg, Illinois 60193-4529

Dear Mr. Schwarz:

Safety Eligibility Letter LS-55

November 13, 2003

Refer to: HSA-10/LS-55

Mr. Bob Sik
Vice President
Akron Foundry Company
2728 Wingate Avenue
P.O. Box 27028
Akron, Ohio 44319-0009

Dear Mr. Sik:

Safety Eligibility Letter LS-56

November 13, 2003

Refer to: HSA-10/LS-56

Mr. Bob Sik
Vice President
Akron Foundry Company
2728 Wingate Avenue
P.O. Box 27028
Akron, Ohio 44319-0009

Dear Mr. Sik:

Safety Eligibility Letter LS-57

April 19, 2004

Refer to: HSA-10/LS-57

Mr. Bob Sik
Vice President
Akron Foundry Company
2728 Wingate Avenue
P.O. Box 27028
Akron, Ohio 44319-0009

Dear Mr. Sik:

Safety Eligibility Letter LS-57r

July 26, 2004

Refer to: HSA-10/LS-57

Mr. Robert Sik
Vice President
Akron Foundry Company
2728 Wingate Avenue
P.O. Box 27028
Akron, Ohio 44319-0009

Dear Mr. Sik:

Safety Eligibility Letter LS-58

February 8, 2005

Refer to: HSA-10/LS-58

Mr. Bob Sik
Vice President
Akron Foundry Company
2728 Wingate Avenue
P.O. Box 27028
Akron, Ohio 44319-0009

Dear Mr. Sik:

Safety Eligibility Letter LS-59

January 4, 2006

Refer to: HSA-10/LS-59

Mr. John Schwarz, P.E.
Sales Engineer
Component Products, Incorporated
521 Morse Avenue
Schaumburg, Illinois 60193-4529

DearMr. Schwarz:

Safety Eligibility Letter LS-60

400 Seventh St., S.W.
Washington, D.C. 20590

April 2, 2007

Refer to: HSSD/LS-60

Mr. John I. Vaughn
SECO Signal Equipment Co.
P.O. Box 78172
Shreveport, LA 71137-8172

Dear Mr. Vaughn:

Safety Eligibility Letter LS-61

December 15, 2006

Refer to: HSA-10/LS-61

Mr. Robert Sik
Vice President
Akron Foundry Company
2728 Wingate Avenue
P.O. Box 27028
Akron. OH 44319-0009

Dear Mr. Sik:

Safety Eligibility Letter LS-62

December 15, 2006

Refer to: HSA-10/LS-62

Mr. Robert Sik
Vice President
Akron Foundry Company
2728 Wingate Avenue
P.O. Box 27028
Akron. OH 44319-0009

Dear Mr. Sik: