Airplane Description
DV 20 E AFM
Page 7 - 28 Rev. 2 22-Mar-2022 Doc. No. 4.01.25-E
After successful completion of the internal test procedure the lights are extinguished.
In case of an internal fault detected by ECU internal mechanisms the LANE A/B FAIL
light is flashing or permanently illuminated depending on the nature of the fault.
When the LANE A/B FAIL light is flashing, the lane is still working and the engine control
function has not been switched to the other lane.
When the LANE A/B FAIL light is illuminated permanently, the lanes engine control function
is switched over the other lane. The engine is now operated in the power modus with
increased fuel consumption. Full engine power is still available.
NOTE
The engine manufacturer allows limited operation with one
flashing LANE A/B FAIL light on the engine level. On the
airplane level continued operation with one flashing
LANE A/B FAIL light is not acceptable. Refer to Chapter 3.
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