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Thread: B777 Drift on gnd?
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Old 27th Feb 2004, 13:45
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SuperRanger
 
Join Date: Nov 2001
Location: KUL
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solved!

the reason is due to different Magnetic Variation Tables being loaded into the FMC and ADIRU. The FMC has 1995 MagVar Tables while the ADIRU has 2005 MagVar Tables. TRK comes from FMC while HDG comes from ADIRU.

SR
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