Corners have half-arch cutout; marked "fuel heaters" at top center; has 16 holes 0.531 in dia, cbore 0.750 diameter x 0.12 deep: top left one marked " apu 2" above "a/c" over hole, "d/c" below, and "off" to left; top right hole marked "apu 1" above "a/c" over hole, "d/c" below, and "off" to right; below these is a row of 4 holes marked "tank 4 tank 2 tank 3 tank 1" above line with word "pre" marked above each hole, below row is line with "sus" below each hole, to left and right of row is "off"; below center grommet is marking " anti-ice" with "eng 4 eng 2 eng 3 eng 1" then row with "open" above and "close under each hole; next is row of 4 holes with " p prp s prp apu 2 apu 1" on one line and "on" above and "off" below each hole; at bottom left are 2 holes marked ""engine" above "blo-in" above "on" over left one and "apu" above "blo-in" above "on" over right one and "off" below both
NSN 6650-01-449-3042
NSN 4140-01-496-4109
NSN 6135-01-231-4809
NSN 5960-01-030-6407
NSN 5950-00-702-4643
NSN 5999-00-343-6770
NSN 6620-01-641-1461
NSN 5915-01-023-9822
NSN 6135-01-142-2417
NSN 5975-00-203-8416
NSN 5910-01-633-9963
NSN 5999-01-206-7128
Last Updated: 10/05/2024