Air data inertial reference unit: Difference between revisions

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{{Short description|Flight instrument}}

An '''air data inertial reference unit''' (ADIRU) is a key component of the integrated '''air data inertial reference system''' (ADIRS), which supplies air data ([[airspeed]], [[angle of attack]] and [[altitude]]) and [[Inertial navigation system|inertial reference]] (position and altitudeattitude) information to the pilots' [[electronic flight instrument system]] displays as well as other systems on the aircraft such as the engines, [[autopilot]], [[aircraft flight control system]] and landing gear systems.<ref name="art5">

{{Cite web

|url=http://findarticles.com/p/articles/mi_m0UBT/is_32_20/ai_n26957235

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===FAA Airworthiness directive 2000-07-27===

On May 3, 2000, the FAA issued [[airworthiness directive]] 2000-07-27, addressing dual critical failures during flight, attributed to power supply issues affecting early [[Honeywell]] HG2030 and HG2050 ADIRU [[ring laser gyro]]s used on several Boeing 737, 757, Airbus A319, A320, A321, A330, and A340 models.<ref name="art2" /><ref>{{cite web

|url=http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgAD.nsf/WebSearchDefault?SearchView&Query=AD%202000-07-27&SearchOrder=1&SearchMax=0&SearchWV=TRUE&SearchFuzzy=FALSE&Start=1&Count=100

|title=Various transport category airplanes equipped with certain Honeywell Air Data Inertial Reference Units