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Old 22nd Aug 2002, 12:01
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spanner-do
 
Join Date: May 2002
Location: UK
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Dedicated Generator 1 per engine provides power for the EEC (also Bleed valve control and Transient Pressure Unit) via one of 2 Dedicated Generator Control Units (duplicated for redundancy).

The EEC only performs supervisory role to match commanded and actual EPR values or a limiter role to prevent N1 speed exceedance. both achieved by downtrimming the mechanically scheduled fuel.

If either or both roles fail then the respective INOP lights will illuminate.

The Motor will continue to turn and burn but there will be no automatic control of EPR or N1 max speed.

Couldn't find anything in the System Schematic Manual to cause the INOP lights to illuminate under the conditions mentioned.
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