. . . "Low Level Windswear Alert System (LLWAS) six sensor improvement"@en . . . . . . . . "Handbooks and manuals"@en . . "Instruction book : Low Level Windshear Alert System (LLWAS) six sensor improvement, type FA10239, contract DTFA01-83-C-20046 made for U.S. Department of Transportation, Federal Aviation Administration"@en . . .