AD/B747/308 - Air Data System
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Replacing the three Electronic Flight Information System (EFIS)/Engine Indicating and Crew Alerting System (EICAS) interface units (EIU) in the main equipment centre with improved EIUs and installing new software in six integrated display units (IDU) and three EIUs.
Replacing the three EIUs in the main equipment centre with improved EIUs and installing new software in six IDUs and three EIUs.
Installing new software in six IDUs and three EIUs.
Replacing three EIUs with improved EIUs and installing new software in six IDUs and three EIUs.
Replacing certain central maintenance computers (CMCs) with improved CMCs, modifying related wiring, and modifying the data loader control panel.
Installing new software in the CMC.
Installing new software in six IDUs and three EIUs.