01145nam 2200349Ia 450 991069793430332120090116091329.0(CKB)5470000002393652(OCoLC)298540187(EXLCZ)99547000000239365220090116d1969 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierMaintenance and handling of air-driven gyroscopic instruments[electronic resource][Washington, D.C.] :Dept. of Transportation, Federal Aviation Administration,[1969]2 pages digital, PDF fileAdvisory circular ;AC no. 91-26Title from PDF caption (viewed Jan. 16, 2009)."10/29/69."Gyroscopic instrumentsAeronautical instrumentsGyroscopic instruments.Aeronautical instruments.GPOGPOBOOK9910697934303321Maintenance and handling of air-driven gyroscopic instruments3121635UNINA