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Old 7th May 2011 | 13:17
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longobard
 
Joined: Dec 2004
Posts: 212
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From: italy
Airbus DDRMI heading supply
In case of IR 1+3 TOTAL FAIL shouldn't the DDRMI heading reference be lost?

Why isn't DDRMI listed in the INOP SYS list of such a failure?

I can only think because the DDRMI VOR/ADF needles still work...might it be?
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