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- United States. General Accounting Office7
- United States6
- United States. Flight Standards Service6
- Shepherd, William T.4
- United States. Congress. House. Committee on Public Works and Transportation. Subcommittee on Aviation4
- United States. Federal Aviation Administration4
- United States. Federal Aviation Administration. Office of Aviation System Standards4
- United States. Office of Aviation Medicine4
- Parker, James F. (James Fletcher), 1925-2
- United States. Congress. House. Committee on Transportation and Infrastructure. Subcommittee on Aviation2
- United States. Congress. House. Committee on Transportation and Infrastructure. Subcommittee on Aviation, author2
- United States. Federal Aviation Administration. Regulatory Support Division2
- Fiedler, Edna1
- Galaxy Scientific Corporation1
- Goldman, Scott M.1
- King, Raymond E., 1959-1
- Layton, Charles F.1
- Library of Congress. Congressional Research Service, issuing body1
- Systems Control Technology, Inc1
- Tang, Rachel Y.1