01334nam 2200373 a 450 991069895140332120090706134809.0(CKB)5470000002398362(OCoLC)422621472(EXLCZ)99547000000239836220090706d2009 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierAviation safety[electronic resource] NASA's National Aviation Operations Monitoring Service project was designed appropriately, but sampling and other issues complicate data analysis : report to congressional requesters[Washington, D.C.] :U.S. Govt. Accountability Office,[2009]ii, 95 pages digital, PDF fileTitle from title screen (viewed on July 1, 2009)."March 2009.""GAO-09-112."Includes bibliographical references.Aviation safety AirlinesUnited StatesSafety measuresAeronauticsUnited StatesSafety measuresAirlinesSafety measures.AeronauticsSafety measures.GPOGPOBOOK9910698951403321Aviation safety2313029UNINA