. . . . . . . . "Federal Aviation Administration's enforcement program and the recertification of carriers who have had operating certificates revoked hearings before the Subcommittee on Investigations and Oversight of the Committee on Public Works and Transportation, House of Representatives, One Hundred First Congress, second session, June 19, 20, 1990"@en . . . . . . . "Federal Aviation Administration's enforcement program and the recertification of carriers who have had operating certificates revoked : hearings before the Subcommittee on Investigations and Oversight of the Committee on Public Works and Transportation, House of Representatives, One Hundred First Congress, second session, June 19, 20, 1990"@en . . . . . . . . . . .