DA 42 AFM
Normal Operating
Procedures
Doc. No. 7.01.05-E Rev. 8 15-Dec-2017 Page 4A - 31
Annunciations in the Following Sequence:
3. ECU A/B FAIL LIGHTS................. ON
4. Propeller RPM ....................... increase
5. ECU A/B FAIL LIGHTS ................ OFF
6. ECU B FAIL LIGHT.................... ON
7. Propeller RPM ....................... decrease / increase
8. ECU B FAIL LIGHT.................... OFF
9. ECU A FAIL LIGHT.................... ON
10. Propeller RPM ....................... decrease / increase
11. ECU A FAIL LIGHT ................... OFF
12. Propeller RPM ....................... decrease to idle
Test sequence completed.
CAUTION
When switching from one ECU to the other a slight shake of
the engine may occur. In case of longer dropouts of the
engine, or if the engine stops during the test, terminate flight
preparation.
13.ECU TEST BUTTON .................. release
14.ECU SWAP ......................... ECU B
15.Engine ............................. check running without a change
16.ECU SWAP ......................... AUTOMATIC
NOTE
When switching from one ECU to the other a slight shake of
the engine may occur.
CONTINUED
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