January 28, 200917 yr With IRU 1 and AUX failed both APs are still available, is this correct? Bryan Richards "People depend so much on automation that they forget how to get the automation to work." B.W.
January 28, 200917 yr I think it's like this:You can navigate with only one IRU. It will get inputs from ADC 1 and 2 and can supply FMC 1 and 2, FCC 1 and FCC 2 and feed all 6 DEU's.For autopliot engagement you need:1 FCCRespective YD channelsRespective LSAS channels1 ADC1 radio altimeter2 IRUsRespective hydraulic systemTo go below CAT 1 single you need 2 IRUs in NAV for CAT 2 single and all 3 in NAV for CAT 3 dual land.Chris G
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