The AE 300 Wizard will display the Data Logger record of a failure during the propeller self test similar
to the following example (a faulty propeller governor):
The self test occurrence can be found by looking for the characteristic two “humps” in the propeller
speed-line when at the same time the power lever is at “0%”. Also the “Combined Engine Status”
shows an ECU-switchover event between the two “humps”.
Problem 1:
The pitch-up test phases (state 3) and pitch-down (state 4)
are not clearly defined on ECU-A
Problem 2:
During the pitch-down test phase (state 4) the goal of 1870 rpm had not been fulfilled on ECU-B
(actual speed reached was just over 1850 rpm) which eventually had caused a caution lamp
indication.
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