01085nam 2200349Ia 450 991069793060332120090121090330.0(CKB)5470000002393689(OCoLC)298950121(EXLCZ)99547000000239368920090121d1975 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierUnreliable airspeed indications[electronic resource][Washington, D.C.] :Department of Transportation, Federal Aviation Administration,[1975]2 pages digital, PDF fileAdvisory circular ;AC no. 91-43Title from PDF caption (viewed Jan. 21, 2009)."6/26/75."AirplanesSpeed recordsAir-speed indicatorsAirplanesSpeed records.Air-speed indicators.GPOGPOBOOK9910697930603321Unreliable airspeed indications3121598UNINA